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{{incomplete|needs=Generation VI details; Gates to Infinity descriptions}}
{{incomplete|needs=Generation VI details; Gates to Infinity descriptions}}
{{move|Weather}}
The '''weather''' (Japanese: '''{{tt|天気|てんき}}''' ''weather'') is a set of mechanics in the Pokémon games that change the battle environment, activating {{Abilities}}, modifying certain [[move]]s, and potentially damaging the Pokémon in battle or affecting their [[stats]]. They have been included in every main series game since [[Generation II]]. In battle, weather is either determined by the location of a battle, due to overworld weather, or by a Pokémon creating a new type of weather with a move or Ability. Only one type of weather may be present at a time, and only the most recent type of weather will take effect.
{{move|Field conditions}}
{{split|{{redlink|shadowy aura}}}}
'''Weather conditions''' (Japanese: '''てんき''' ''Weather'') are mechanics of the Pokémon games, and have been included in every main series game since [[Generation II]]. The weather system was expanded on in [[Generation III]], and again further expanded in [[Generation IV]]. In each generation, the weather has been determined either by the location of the battle or the Pokémon involved. Only one weather condition may be present at one time, and only the most recent weather condition will take effect.


==Characteristics==
In Generation II, only moves that cause weather were introduced and weather was only present in battles, not in the overworld. [[Generation III]] introduced overworld weather and [[:Category:Abilities with effects on weather conditions|weather-related Abilities]], as well as a new weather-causing move. The biggest modification to weather in [[Generation IV]] was the introduction of {{DL|In-battle effect item|Condition boosters|four rocks}} that, when held, would increase the duration of weather caused by a weather move. [[Generation V]] mostly introduced greater overworld weather variability, especially in [[seasons]] affecting the weather in certain locations.
In all generations since [[Generation II]], some moves, such as {{m|Thunder}} and {{m|SolarBeam}}, take advantage of certain weather conditions and have increased power or accuracy. Other moves can directly cause or cease weather, such as {{m|Sunny Day}} and {{m|Defog}}. Beginning in Generation III, some [[Ability|Abilities]] have revolved around weather effects: the [[weather trio]]'s {{p|Groudon}} and {{p|Kyogre}}'s respective Abilities, {{a|Drought}} and {{a|Drizzle}}, can cause changes in the weather; while {{p|Rayquaza}}'s Ability {{a|Air Lock}} neutralizes it.


===Weather-utilization===
==Types of weather and effects==
{{main|Castform}}
===Overview===
One of the {{cat|Generation III Pokémon|Pokémon introduced in Generation III}} was designed to take full advantage of the varying weather conditions. In a battle, where no weather effects are present, Castform is a {{type|Normal}} Pokémon. However, when any of the effects besides a sandstorm or Shadow Sky are applied, Castform's type and shape change to match the weather, due to its Ability, {{a|Forecast}}. Also, when it is leveled up, it learns a move called {{m|Weather Ball}}, which also changes type with the weather, doubling its power when any weather was in effect. Unlike Forecast, Weather Ball's type differs even in a sandstorm, becoming a {{type|Rock}} move, and Shadow Sky, becoming a {{type|???}} move.
*'''Clear skies''': Actually the absence of weather. This is the weather found in most locations.
*'''[[Intense sunlight]]''': Strong sunlight shines on the battlefield. This has only occurred in the overworld in the [[Hoenn]] region, due to {{p|Groudon}}'s presence in an area.
**'''[[Intense sunlight|Extremely harsh sunlight]]''': Extremely harsh sunlight shines down, negating {{type|Water}} attacks and causing weather-changing moves and Abilities to fail.
*'''[[Rain]]''': Rain falls on the battlefield. Different variations of this weather may appear on the overworld. This is the most common weather pattern that may be found on [[route]]s and occasionally in cities.
**'''[[Rain|Heavy rain]]''': Heavy rain slants across the battlefield, negating {{type|Fire}} attacks and causing weather-changing moves and Abilities to fail.
*'''{{weather|Sandstorm}}''': Stinging sand whips across the battlefield. In Generations III through [[Generation V|V]], every new [[region]] had a specific area where a sandstorm was always occurring.
*'''{{weather|Hail}}''': Pelting hail falls on the battlefield. Different variations of this weather may appear on the overworld, and there may even be benign falling snow that does not cause hail in a battle.
**'''{{weather|Diamond dust}}''': A special, purely aesthetic version of snow. It was an [[easter egg]] first revealed in {{game|Diamond and Pearl|s}}, and is known to appear in every core game since.
*'''{{weather|Shadowy aura}}''': Bursts of light rain down from a shadowy aura in the sky. This type of weather is only present in [[Pokémon XD: Gale of Darkness]] and has no overworld manifestation anywhere.
*'''[[Fog]]''': A thick fog clouds the battlefield. This only had an in-battle effect during Generation IV, but it has been present in the overworld in other Generations in a purely aesthetic form.
*'''[[Strong winds]]''': An air current blows across the battlefield, eliminating the [[Flying (type)|Flying type]]'s weaknesses and causing weather-changing moves and Abilities to fail.
There is also a glitch that occurs in {{game|Platinum}}, {{2v2|HeartGold|SoulSilver}}, called [[acid rain]], that results in the simultaneous occurrence of all then-existing weather conditions at once, damaging all Pokémon on the field.


==History==
In [[Generation V]], the weather was given an icon which appeared on the DS or 3DS's bottom screen in a battle whenever weather was occurring. Since fog and shadowy auras were only present in-battle before Generation V, they have no icons. When there is no weather, no icon is shown.
===Generation II===
{| style="margin:auto; text-align:center; {{roundy|10px}} border: 5px solid #{{normal color dark}}; background:#{{normal color}}" cellspacing=1
In the Generation II games, three [[move]]s were introduced that could change the weather during a battle to alter the playing field slightly. These moves were {{m|Sunny Day}}, which caused intense sunlight for five rounds; {{m|Rain Dance}}, which caused heavy rain for five rounds; and {{m|Sandstorm}}, which caused a sandstorm. These three moves can change the course of a battle, with intense sun and heavy rain powering up {{t|Fire}}- and {{type|Water}} moves, respectively, and powering down the other; intense sun also allows a Pokémon to execute {{m|SolarBeam}} without requiring a turn to charge it first, and heavy rain causes {{m|Thunder}} to never miss the target. A sandstorm slightly damages any Pokémon that are not {{t|Rock}}-, {{t|Ground}}-, or {{type|Steel}}.
|-
! style="background: #{{normal color light}}; {{roundytl|5px}}" | Game
! style="background: #{{normal color light}}" | [[Intense sunlight]]
! style="background: #{{normal color light}}" | [[Rain]]
! style="background: #{{normal color light}}" | {{weather|Sandstorm}}
! style="background: #{{normal color light}}; {{roundytr|5px}}" | {{weather|Hail}}
|-
| style="background: #FFF" | {{gameabbrev3|BW}}
| style="padding:3px; background: #FFF;" | [[File:Sunlight icon BW.png|40px]]
| style="padding:3px; background: #FFF;" | [[File:Rain icon BW.png|40px]]
| style="padding:3px; background: #FFF;" | [[File:Sandstorm icon BW.png|40px]]
| style="padding:3px; background: #FFF;" | [[File:Hail icon BW.png|40px]]
|-
| style="background: #FFF; {{roundybl|5px}}" | {{gameabbrev3|B2W2}}
| style="padding:3px; background: #FFF;" | [[File:Sunlight icon B2W2.png]]
| style="padding:3px; background: #FFF;" | [[File:Rain icon B2W2.png]]
| style="padding:3px; background: #FFF;" | [[File:Sandstorm icon B2W2.png]]
| style="padding:3px; background: #FFF; {{roundybr|5px}}" | [[File:Hail icon B2W2.png]]
|}


Although weather conditions were introduced in this generation, they could not be seen in the overworld until the next generation.
In [[Generation VI]] the background of the bottom screen shows an animation of the current weather.


===Generation III===
===Causing weather===
The Generation III games introduced a new weather condition: hail. Hail is caused by the identically titled move {{m|Hail}}, which, like {{m|Sunny Day}}, {{m|Rain Dance}}, and {{m|Sandstorm}} before it, changes the weather for five turns. Hail, similar to sandstorm, slightly damages all Pokémon that are not {{type|Ice}} each turn.
Most of the types of weather have a [[move]] or [[Ability]] that will cause that weather.
{| style="margin:auto; text-align:center; {{roundy|10px}} border: 5px solid #{{normal color dark}}; background:#{{normal color}}" cellspacing=1
|-
!
! style="background:#{{normal color light}}" | Clear skies
! style="background:#{{normal color light}};" | [[Intense sunlight]]
! style="background:#{{normal color light}};" | [[Intense sunlight|Extremely harsh sunlight]]
! style="background:#{{normal color light}};" | [[Rain]]
! style="background:#{{normal color light}};" | [[Rain|Heavy rain]]
! style="background:#{{normal color light}};" | {{weather|Sandstorm}}
! style="background:#{{normal color light}};" | {{weather|Hail}}
! style="background:#{{normal color light}};" | {{weather|Shadowy aura}}
! style="background:#{{normal color light}};" | [[Fog]]
! style="background:#{{normal color light}}; {{roundytr|5px}};" | [[Strong winds]]
|- style="background:#FFF"
! style="background:#{{normal color light}};" | Move
| {{m|Defog}}{{tt|*|Only clears fog; does not affect other types of weather}}
| {{m|Sunny Day}}
| —
| {{m|Rain Dance}}
| —
| {{m|Sandstorm}}
| {{m|Hail}}
| {{m|Shadow Sky}}
| —
| —
|-
! style="background:#{{normal color light}}; text-align:left; {{roundybl|5px}}" | Ability
| style="background:#FFF" | {{a|Air Lock}},<br>{{a|Cloud Nine}}
| style="background:#FFF" | {{a|Drought}}
| style="background:#FFF" | {{a|Desolate Land}}
| style="background:#FFF" | {{a|Drizzle}}
| style="background:#FFF" | {{a|Primordial Sea}}
| style="background:#FFF" | {{a|Sand Stream}}
| style="background:#FFF" | {{a|Snow Warning}}
| style="background:#FFF" | &mdash;
| style="background:#FFF" | &mdash;
| style="background:#FFF; {{roundybr|5px}}" | {{a|Delta Stream}}
|}


The [[version mascot]]s of {{game2|Ruby|Sapphire|Emerald}} have weather-related Abilities. Ruby's {{p|Groudon}}'s {{a|Drought}} causes intense sunlight until the battle ends or another weather effect takes its place; likewise, Sapphire's {{p|Kyogre}}'s {{a|Drizzle}} causes heavy rain until the battle ends or another weather effect takes its place. Emerald's {{p|Rayquaza}}'s {{a|Air Lock}} suppresses the effect of all weather conditions, but the weather itself continues. {{p|Psyduck}} and {{p|Golduck}} can also have the Ability {{a|Cloud Nine}}, which has the same effect as Air Lock.
In addition, {{m|Defog}} may clear fog from an overworld area (in Generation IV only). It is the only move that has any effect on weather in the overworld.


During a specific part of the game, Groudon and Kyogre's weather effects can be seen out of battle, throughout the Hoenn region. Some routes are also naturally affected by the weather: {{rt|119|Hoenn}} is often covered in rain; {{rt|111|Hoenn}} has an area in which a sandstorm always blows. These field weather effects carry onto later games. A location in Hoenn, the [[Weather Institute]], is dedicated to the study of weather. The Weather Institute is said to have created {{p|Castform}}, a Pokémon that changes with the weather.
Weather normally lasts for 5 turns when it is called by a move. Prior to [[Generation VI]], weather created by an Ability would continue until the battle ended or another type of weather took its place; since Generation VI, though, weather created by Abilities also last for only 5 turns. However, there are four [[held item]]s that can increase the duration of summoned weather effects, so that they last 8 turns. The rock that affects each type of weather is shown below.
{| style="margin:auto; text-align:center; {{roundy|10px}} border: 5px solid #{{normal color dark}}; background:#{{normal color}}" cellspacing=1
|-
! style="background:#{{normal color light}}; {{roundytl|5px}};" | [[Intense sunlight]]
! style="background:#{{normal color light}}" | [[Rain]]
! style="background:#{{normal color light}}" | {{weather|Sandstorm}}
! style="background:#{{normal color light}}; {{roundytr|5px}};" | {{weather|Hail}}
|-
| width="25%" style="background:#FFF; padding-top:3px; {{roundybl|5px}}" | [[File:Dream Heat Rock Sprite.png|45px]]<br>{{DL|In-battle effect item|Heat Rock}}
| width="25%" style="background:#FFF; padding-top:3px" | [[File:Dream Damp Rock Sprite.png|45px]]<br>{{DL|In-battle effect item|Damp Rock}}
| width="25%" style="background:#FFF; padding-top:3px" | [[File:Dream Smooth Rock Sprite.png|45px]]<br>{{DL|In-battle effect item|Smooth Rock}}
| width="25%" style="background:#FFF; padding-top:3px; {{roundybr|5px}}" | [[File:Dream Icy Rock Sprite.png|45px]]<br>{{DL|In-battle effect item|Icy Rock}}
|}


{{p|Tyranitar}} has the Ability {{a|Sand Stream}}, which causes a sandstorm until the battle ends or another weather effect takes its place. Other Pokémon have Abilities that benefit from weather that is already in effect, such as {{p|Lotad}}'s {{a|Rain Dish}}.
===Effects===
Three of the types of weather can do damage to Pokémon in battle at the end of a turn. In a {{weather|sandstorm}}, {{weather|hail}}, or {{weather|shadowy aura}}, any Pokémon that is not {{t|Rock}}-, {{t|Ground}}-, or {{type|Steel}}; {{type|Ice}}; or a [[Shadow Pokémon]] (respectively) will be damaged for <sup>1</sup>/<sub>16</sub> of its maximum HP. Certain {{Abilities}} prevent damage from weather effects, though, and a Pokémon holding {{DL|In-battle effect item|Safety Goggles}} is also immune to damage from weather effects.


===Generation IV===
Sandstorm and [[fog]] both affect the [[stats]] of Pokémon on the battlefield. Since Generation IV, in a sandstorm, the Special Defense of {{type|Rock}} Pokémon is increased by 50%. In fog, the accuracy of all Pokémon in battle is decreased.
In the Generation IV games {{game5|Diamond|Pearl|Platinum|HeartGold|SoulSilver}}, there are routes which are constantly affected by rain, sandstorm, or snow. A new weather condition was also introduced: fog. Unlike the other conditions, fog cannot be caused by a move; instead it appears in certain areas, and {{m|Defog}} can remove it.


A new Ability is introduced that acts as a counterpart to some of the Abilities introduced in Generation III. {{a|Snow Warning}} causes a hailstorm for the duration of the battle, in the same way as {{a|Drought}}, {{a|Drizzle}} and {{a|Sand Stream}}. Four [[held item]]s were also introduced, which each correspond to a certain weather condition and will increase the duration of the weather condition, if caused by a move used by the holder, by three turns.
During [[intense sunlight]], all Pokémon are immune to {{status|freeze|freezing}}.


The move {{m|Hail}} now boosted the accuracy of {{m|Blizzard}} to 100%; The move {{m|Sandstorm}} now boosted the Special Defense of {{type|Rock}} Pokémon by 50%.
Intense sunlight and [[rain]] both affect the power of certain types of [[move]]s. [[Intense sunlight]] strengthens the power of {{type|Fire}} moves by 50% and weakens the power of {{type|Water}} moves by 50%, while [[rain]] does the opposite, strengthening Water-type moves while weakening Fire-type moves.


More interesting things introduced within Generation IV were other conditions that had nothing to do with the weather, but behaved similarly to the weather-activating moves. Like the weather conditions, these moves would affect all Pokémon on the field for five turns, and in various ways. For example, {{m|Gravity}} makes all Pokémon fall to the ground, enabling all Pokémon to be susceptible to things such as {{type|Ground}} moves, {{m|Spikes}}, {{a|Arena Trap}}, and others; decreases the {{stat|evasion}} of all Pokémon by two stages; as well as disabling moves like {{m|Fly}} and {{m|Hi Jump Kick}}. {{m|Trick Room}} makes slower Pokémon attack first, and {{m|Tailwind}} doubles the {{stat|Speed}} of the user's team for three turns.
Certain specific moves are also affected in special ways by the weather.
*The recovery moves {{m|Synthesis}}, {{m|Morning Sun}}, and {{m|Moonlight}} will recover different amounts{{tt|*|The numbers given here are only accurate for Generation III and later}} of HP depending on the weather: in clear skies, they recover <sup>1</sup>/<sub>2</sub> of the user's maximum HP; in intense sunlight, they recover <sup>2</sup>/<sub>3</sub> HP; and in other types of weather, they recover <sup>1</sup>/<sub>4</sub> HP.
*The accuracy of {{m|Thunder}}, {{m|Hurricane}}, and {{m|Blizzard}} is affected by the weather. In hail, Blizzard ignores accuracy and evasion checks{{tt|*|In Generation IV, Blizzard's accuracy was simply raised to 100%. In Generation III, Blizzard's accuracy was unaffected.}}, while Thunder{{tt|*|In Generations II-IV, Thunder's accuracy was simply raised to 100%.}} and Hurricane do the same in rain. During intense sunlight, however, Thunder and Hurricane only have 50% accuracy. In {{game|Diamond and Pearl|s}}, Blizzard and Thunder also had a 30% chance to hit through {{m|Protect}} or {{m|Detect}} when used in their favored weather.
*{{m|Solar Beam}} becomes a 1-turn move in intense sunlight, skipping its charge turn, but in rain, sandstorm, or hail, Solar Beam's power is halved.
*{{m|Growth}}'s stat increases double in intense sunlight (since Generation V).
*When used as a [[field move]] in Generation IV or later, {{m|Sweet Scent}} will fail to work if there is a type of weather in effect in the area.


[[Acid rain]], a weather-related glitch, is present in {{3v2|HeartGold|SoulSilver|Platinum}}, in which all weather conditions are present at once.
===Activated Abilities===
The following Abilities are activated when a type of weather comes into effect. Unless a type of weather is in effect, none of these Abilities has any effect.
{| style="margin:auto; text-align:center; {{roundy|10px}} border: 5px solid #{{normal color dark}}; background:#{{normal color}}" cellspacing=1
|-
! style="background:#{{normal color light}}; {{roundytl|5px}};" | [[Intense sunlight]]<br>[[Intense sunlight|Extremely harsh sunlight]]
! style="background:#{{normal color light}};" | [[Rain]]<br>[[Rain|Heavy rain]]
! style="background:#{{normal color light}};" | {{weather|Sandstorm}}
! style="background:#{{normal color light}}; {{roundytr|5px}};" | {{weather|Hail}}
|- style="background:#FFF"
| {{a|Forecast}}
| {{a|Forecast}}
| {{a|Sand Veil}}
| {{a|Forecast}}
|- style="background:#FFF"
| {{a|Dry Skin}}
| {{a|Dry Skin}}
| {{a|Sand Rush}}
| {{a|Ice Body}}
|- style="background:#FFF"
| {{a|Chlorophyll}}
| {{a|Hydration}}
| {{a|Sand Force}}
| {{a|Snow Cloak}}
|-
| style="background:#FFF" | {{a|Flower Gift}}
| style="background:#FFF" | {{a|Rain Dish}}
|-
| style="background:#FFF" | {{a|Leaf Guard}}
| style="background:#FFF" | {{a|Swift Swim}}
|-
| style="background:#FFF; {{roundybl|5px}}" | {{a|Solar Power}}
|}


===Generation V===
In addition to the above Abilities, {{a|Harvest}} is guaranteed to restore a Berry whenever it triggers in intense sunlight, and the Abilities {{a|Overcoat}} and {{a|Magic Guard}} will prevent weather-related damage.
Generation V introduced [[seasons]], which can affect the occurrence of weather in certain cities and routes. For instance, in [[Driftveil City]], hail and snow are present only during the winter, while rain is common during the spring and autumn. The Pokémon {{p|Thundurus}} and {{p|Tornadus}} cause a storm on the route they are on, which is treated as rain in battle. Despite still being present on some routes, fog is no longer present in battles and cannot be removed via {{m|Defog}}.


Also introduced were several new Abilities that make use of the weather. {{a|Sand Rush}} and {{a|Sand Force}} both benefit a Pokémon during a sandstorm, while {{a|Overcoat}} negates the damage taken in a hailstorm and sandstorm. With the addition of Hidden Abilities, many old Pokémon now have access to weather-related Abilities. Most notability, {{a|Drought}} and {{a|Drizzle}}, previously available only to {{p|Groudon}} and {{p|Kyogre}}, are now available to more Pokémon. Specifically, {{p|Vulpix}} and {{p|Ninetales}} now have access to {{a|Drought}}, while {{p|Politoed}} now has access to {{a|Drizzle}}.
===Castform and Weather Ball===
{{main|Castform (Pokémon)}}
{{main|Weather Ball (move)}}
{{p|Castform}} is a Pokémon uniquely designed to take advantage of the weather. Its [[Ability]], {{a|Forecast}}, causes it to change [[form differences|form]] when a type of weather is present. Forecast does not cause a unique change for every possible type of weather, though.


==Types of weather==
{| style="margin:auto; text-align:center; background: #FFFFFF; {{roundy}};"
There have been six different weather conditions that affect battling in the [[version|main series]] of Pokémon games, and all but one of them have effects in the overworld.
|-
| width="25%" style="background: #{{normal color light}}; {{roundy}};" | Normal<br>[[File:351Castform Normal Dream.png|80px]]<br><small>{{typecolor|Normal}}</small><br>During clear skies, [[fog]],<br>{{weather|sandstorm}}, {{weather|shadowy aura}}, and [[strong winds]]
| width="25%" style="background: #{{fire color light}}; {{roundy}};" | Sunny Form<br>[[File:351Castform Sunny Form Dream.png|96px]]<br><small>{{typecolor|Fire}}</small><br>During [[intense sunlight]] and [[intense sunlight|extremely harsh sunlight]]
| width="25%" style="background: #{{water color light}}; {{roundy}};" | Rainy Form<br>[[File:351Castform Rainy Form Dream.png|96px]]<br><small>{{typecolor|Water}}</small><br>During [[rain]] and [[rain|heavy rain]]
| width="25%" style="background: #{{ice color light}}; {{roundy}};" | Snowy Form<br>[[File:351Castform Snowy Form Dream.png|96px]]<br><small>{{typecolor|Ice}}</small><br>During {{weather|hail}}
|}


===Intense sunlight===
{{m|Weather Ball}} is a [[move]] that uniquely takes advantage of the weather. In [[Generation III]], it was introduced along with Castform and was Castform's [[signature move]]. Since then, a number of other Pokémon have become able to learn Weather Ball, but Castform remains the only Pokémon able to learn it by leveling up, without needing the services of a [[move relearner]].
{{main|Intense sunlight}}
[[File:Sunlight icon B2W2.png|thumb|right|Icon from Black 2 and White 2]]
Intense sunlight is called by the move {{m|Sunny Day}} and the ability {{a|Drought}}. It increases the power of {{type|Fire}} moves by 50%, and decreases the power of {{type|Water}} moves by the same amount. Despite its Fire-type affinity, many of its effects also benefit {{type|Grass}}s, activating and enhancing several abilities associated with them, including {{a|Chlorophyll}}, {{a|Flower Gift}}, {{a|Harvest}}, {{a|Leaf Guard}}, and {{a|Solar Power}}. It also allows {{m|Solar Beam}} to be used instantly, causes {{m|Moonlight}}, {{m|Synthesis}}, and {{m|Morning Sun}} to recover ⅔ of max {{stat|HP}}, and doubles stat increases when using {{m|Growth}}. On the other hand, it decreases the accuracy of {{m|Thunder}} and {{m|Hurricane}} to 50%. All Pokémon are immune to {{status|freeze|freezing}} while the sun is intense.


Intense sunlight turns {{p|Castform}} into a Fire-type and changes {{m|Weather Ball}} to a Fire-type move and doubles its power.
Whenever there is a type of weather present, Weather Ball's base power will double to 100. Weather Ball's type also changes during most types of weather.


===Rain===
{| style="margin:auto; text-align:center; background: #FFFFFF; {{roundy}};"
{{main|Rain}}
| height="90px" width="90px" style="background: #{{normal color light}}; {{roundy|45px}}" | During<br>clear skies{{tt|*|Clear skies is the absence of weather, so Weather Ball's power remains 50}}<br>{{typecolor|Normal}}
[[File:Rain icon B2W2.png|thumb|right|Icon from Black 2 and White 2]]
| height="90px" width="90px" style="background: #{{fire color light}}; {{roundy|45px}}" | During<br>[[intense sunlight]]/[[intense sunlight|extremely harsh sunlight]]<br>{{typecolor|Fire}}
Rain is called by the move {{m|Rain Dance}} and the ability {{a|Drizzle}}, and is the most common naturally occurring weather condition. It increases the power of {{type|Water}} moves by 50%, and decreases the power of {{type|Fire}} moves by the same amount. It prevents {{m|Thunder}} and {{m|Hurricane}} missing. On the other hand, it causes {{m|Solar Beam}} to only deal half of its normal damage, and lowers HP recovered from {{m|Moonlight}}, {{m|Synthesis}}, and {{m|Morning Sun}} to ¼ of max {{stat|HP}}. It is associated with the abilities {{a|Dry Skin}}, {{a|Hydration}}, {{a|Rain Dish}}, and {{a|Swift Swim}}.
| height="90px" width="90px" style="background: #{{water color light}}; {{roundy|45px}}" | During<br>[[rain]]/[[rain|heavy rain]]<br>{{typecolor|Water}}
| height="90px" width="90px" style="background: #{{rock color light}}; {{roundy|45px}}" | During<br>{{weather|sandstorm}}<br>{{typecolor|Rock}}
| height="90px" width="90px" style="background: #{{ice color light}}; {{roundy|45px}}" | During<br>{{weather|hail}}<br>{{typecolor|Ice}}
| height="90px" width="90px" style="background: #{{??? color light}}; {{roundy|45px}}" | During<br>{{weather|shadowy aura}}<br>{{typecolor|???}}
| height="90px" width="90px" style="background: #{{normal color light}}; {{roundy|45px}}" | During<br>[[fog]]/[[strong winds]]<br>{{typecolor|Normal}}
|}


Rain turns {{p|Castform}} into a Water-type and changes {{m|Weather Ball}} to a Water-type move and doubles its power. {{p|Sliggoo}} evolves into {{p|Goodra}} starting at level 50 when leveled up during rain in the overworld.
Because of its Ability, Castform has a unique synergy with Weather Ball that no other Pokémon that can learn Weather Ball has. In intense sunlight, rain, or hail, Castform will always get [[Same-type attack bonus|STAB]] thanks to its Ability.


===Sandstorm===
===Weather-dependent evolution===
{{main|Sandstorm (weather condition)}}
Starting at level 50, {{p|Sliggoo}} will evolve into {{p|Goodra}} if it is leveled up while it is [[rain]]ing in the overworld.
[[File:Sandstorm icon B2W2.png|thumb|right|Icon from Black 2 and White 2]]
Sandstorms are called by the move {{m|Sandstorm}} and the ability {{a|Sand Stream}}. It damages all Pokémon who are not {{t|Rock}}-, {{t|Ground}}-, or {{type|Steel}}, and increases the {{stat|Special Defense}} of Rock-type Pokémon by 50% when in effect. It causes {{m|Solar Beam}} to only deal half of its normal damage, and lowers HP recovered from {{m|Moonlight}}, {{m|Synthesis}}, and {{m|Morning Sun}} to ¼ of max {{stat|HP}}. It is associated with the abilities {{a|Sand Veil}}, {{a|Sand Rush}}, and {{a|Sand Force}}. Pokémon with the aforementioned abilities, as well as those with {{a|Overcoat}} and {{a|Magic Guard}}, or hold {{DL|In-battle effect item|Safety Goggles}}, are immune to Sandstorm damage.  


Unlike {{weather|intense sunlight}}, {{weather|rain}}, and {{weather|hail}}, {{p|Castform}} does not change form or type in sandstorms. However, it still changes {{m|Weather Ball}} to a Rock-type move and doubles its power.
{| style="margin:auto; text-align:center; {{roundy|15px}} border: 4px solid #{{Dragon color light}}; background:#{{Dragon color}}"
|-
| rowspan="2" |
| <small>Middle</small>
| rowspan="2" | <small>Trigger</small><br>→<br>{{color2|000|Level|Level 50}}<br> while raining
| <small>Highest</small>
| rowspan="2" |
|-
| style="background: #{{Dragon color light}}; {{roundy|1em}}" | [[File:705Sliggoo.png|96px]]<br>{{color2|000|Sliggoo (Pokémon)|Sliggoo}}
| style="background: #{{Dragon color light}}; {{roundy|1em}}" | [[File:706Goodra.png|96px]]<br>{{color2|000|Goodra (Pokémon)|Goodra}}
|-
| colspan="3" |
|}


===Hail===
==Weather in Pokémon Mystery Dungeon==
{{main|Hail (weather condition)}}
[[File:Hail icon B2W2.png|thumb|right|Icon from Black 2 and White 2]]
Hail called by the move {{m|Hail}} and the ability {{a|Snow Warning}}. It damages all Pokémon who are not {{type|Ice}}. It prevents {{m|Blizzard}} from missing. On the other hand, it causes {{m|Solar Beam}} to only deal half of its normal damage, and lowers HP recovered from {{m|Moonlight}}, {{m|Synthesis}}, and {{m|Morning Sun}} to ¼ of max {{stat|HP}}. It is associated with the abilities {{a|Ice Body}} and {{a|Snow Cloak}}. Pokémon with the aforementioned abilities, as well as those with {{a|Overcoat}} and {{a|Magic Guard}}, or hold {{DL|In-battle effect item|Safety Goggles}}, are immune to Hail damage.
 
Hail turns {{p|Castform}} into an Ice-type and changes {{m|Weather Ball}} to a Ice-type move and doubles its power.
 
===Shadow Sky===
Shadow skies are a weather condition that only appears in {{g|XD: Gale of Darkness}}. It is called by the move {{m|Shadow Sky}}. It damages all Pokémon that are not [[Shadow Pokémon]]. As a byproduct of a [[Shadow move]], it does not occur naturally.
 
{{p|Castform}} does not change form or type in shadow skies, but it changes {{m|Weather Ball}} into a {{type|???}} move and doubles its power.
 
====Appearance====
{{movegen
|type=Shadow
|XD=Darkness Battle}}
 
===Fog===
{{main|Fog}}
Fog is a weather condition that has appeared as an aesthetic effect since [[Generation III]], but has only had an effect in battle in {{game2|Diamond|Pearl|Platinum}}, as well as {{g|Battle Revolution}}. It is not called by any move or ability, and only occurs naturally. Its effect is largely negative, lowering the {{stat|Accuracy}} of all Pokémon battling, and causing {{m|Moonlight}}, {{m|Synthesis}}, and {{m|Morning Sun}} to recover ¼ of max HP. It also makes obstacles and trainers difficult to see on the field. It can be removed if {{m|Defog}} is used.
 
{{p|Castform}} does not change form or type in fog, and it does not change {{m|Weather Ball}}'s type, but it still doubles its power.
 
==Other appearances==
===Pokémon Mystery Dungeon===
Various weather effects appear in certain dungeons in the [[Pokémon Mystery Dungeon]] series. Weather effects can change from floor to floor, and can also be altered through the use of [[Wonder Orb]]s. In [[Pokémon Mystery Dungeon: Gates to Infinity|Gates to Infinity]], Pokémon will not restore health via walking unless the weather is Clear.
Various weather effects appear in certain dungeons in the [[Pokémon Mystery Dungeon]] series. Weather effects can change from floor to floor, and can also be altered through the use of [[Wonder Orb]]s. In [[Pokémon Mystery Dungeon: Gates to Infinity|Gates to Infinity]], Pokémon will not restore health via walking unless the weather is Clear.
*'''Clear:''' {{tt|Allows Pokémon to restore HP by walking or holding the A and B buttons|This occurs in Gates to Infinity only, as in previous games Pokémon restored HP by walking in any weather condition.}}.
*'''Clear:''' {{tt|Allows Pokémon to restore HP by walking or holding the A and B buttons|This occurs in Gates to Infinity only, as in previous games Pokémon restored HP by walking in any type of weather.}}.
*'''Sunny:''' Fire-type moves increase power by 50%, while the power of Water-type moves is cut in half.
*'''Sunny:''' Fire-type moves increase power by 50%, while the power of Water-type moves is cut in half.
*'''Fog:''' The power of Electric-type moves is cut in half.
*'''Fog:''' The power of Electric-type moves is cut in half.
*'''Snow:''' Ice-type Pokémon have an increased [[movement speed]].
*'''Snow:''' Ice-type Pokémon have an increased [[movement speed]].
*'''Rain:''' Water-type moves increase power by 50%, while the power of Fire-type moves is cut in half. Also prevents explosions from traps and moves like {{m|Selfdestruct}}.
*'''Rain:''' Water-type moves increase power by 50%, while the power of Fire-type moves is cut in half. Also prevents explosions from traps and moves like {{m|Self-Destruct|Selfdestruct}}.
*'''Hail:''' Deals 5 points of damage to non-Ice types every 10 turns.
*'''Hail:''' Deals 5 points of damage to non-Ice types every 10 turns.
*'''Sandstorm:''' Deals 5 points of damage to non-Rock, Ground, and Steel types every 10 turns.  
*'''Sandstorm:''' Deals 5 points of damage to non-Rock, Ground, and Steel types every 10 turns.  
*'''Cloudy:''' Reduces the damage of all non-Normal-type moves by 25%.
*'''Cloudy:''' Reduces the damage of all non-Normal-type moves by 25%.


====Gates to Infinity descriptions====
===Gates to Infinity descriptions===
{| style="margin:auto; text-align:center; {{roundy|20px}} border: 4px solid #{{MD color dark}}; background:#{{MD color light}}"
{| style="margin:auto; text-align:center; {{roundy|20px}} border: 4px solid #{{MD color dark}}; background:#{{MD color}}"
|- style="font-size: 95%; font-weight: bold"
|- style="font-size: 95%; font-weight: bold"
| style="background:#{{normal color}}; {{roundytl|15px}}" | Clear
| style="background:#{{normal color}}; {{roundytl|15px}}" | Clear
Line 133: Line 239:


==Trivia==
==Trivia==
*The [[Weather Institute]] in [[Hoenn]] is dedicated to the study of weather. It is said to have created {{p|Castform}}, a Pokémon that changes with the weather.
* All weather-creating Abilities ({{a|Drought}}, {{a|Drizzle}}, {{a|Sand Stream}}, and {{a|Snow Warning}}) debuted the generation after their respective moves/weather ({{m|Sunny Day}}, {{m|Rain Dance}}, {{m|Sandstorm}}, and {{m|Hail}}).
* All weather-creating Abilities ({{a|Drought}}, {{a|Drizzle}}, {{a|Sand Stream}}, and {{a|Snow Warning}}) debuted the generation after their respective moves/weather ({{m|Sunny Day}}, {{m|Rain Dance}}, {{m|Sandstorm}}, and {{m|Hail}}).
* Fog first appeared in [[Generation III]] on [[Mt. Pyre]], but had no effect on battles.
* Several lines of unused weather effect text appear within the code of the games. Notably, quotes for {{weather|fog}} exist within the text for Black and White, implying that fog was planned to exist in Black and White.
:{| style="background: #{{water color dark}}; border: 3px solid #{{water color}}; {{roundy|10px}}"
|- style="background:#fff; {{roundytop}}"
| It is raining.{{sup/4|DPPtHGSS}}
|- style="background:#fff;"
| A sandstorm is raging.{{sup/4|DPPtHGSS}}
|- style="background:#fff;"
| A downpour started!{{sup/4|DPPtHGSS}}
|- style="background:#fff;"
| The downpour continues.{{sup/4|DPPtHGSS}}
|- style="background:#fff;"
| Fog crept up as thick as soup!{{sup/5|BWB2W2}}
|- style="background:#fff;"
| The fog lifted.{{sup/5|BWB2W2}}
|- style="background:#fff;"
| The sandstorm rages.{{sup/5|BWB2W2}}
|- style="background:#fff; {{roundybottom}}"
| The hail crashes down.{{sup/5|BWB2W2}}
|}


{{Weathernav}}
{{Weathernav}}
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{{Project Games notice|game mechanic}}
{{Project Games notice|game mechanic}}


[[Category:Weather conditions]]
[[Category:Weather conditions|*]]
[[Category:Game mechanics]]
[[Category:Game mechanics]]
[[Category:Pokémon world]]
[[Category:Pokémon world]]
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[[ja:てんき]]
[[ja:てんき]]
[[pl:Warunki pogodowe]]
[[pl:Warunki pogodowe]]
[[zh:天气]]

Revision as of 05:11, 17 July 2015

050Diglett.png This article is incomplete.
Please feel free to edit this article to add missing information and complete it.
Reason: Generation VI details; Gates to Infinity descriptions

The weather (Japanese: 天気 weather) is a set of mechanics in the Pokémon games that change the battle environment, activating Abilities, modifying certain moves, and potentially damaging the Pokémon in battle or affecting their stats. They have been included in every main series game since Generation II. In battle, weather is either determined by the location of a battle, due to overworld weather, or by a Pokémon creating a new type of weather with a move or Ability. Only one type of weather may be present at a time, and only the most recent type of weather will take effect.

In Generation II, only moves that cause weather were introduced and weather was only present in battles, not in the overworld. Generation III introduced overworld weather and weather-related Abilities, as well as a new weather-causing move. The biggest modification to weather in Generation IV was the introduction of four rocks that, when held, would increase the duration of weather caused by a weather move. Generation V mostly introduced greater overworld weather variability, especially in seasons affecting the weather in certain locations.

Types of weather and effects

Overview

  • Clear skies: Actually the absence of weather. This is the weather found in most locations.
  • Intense sunlight: Strong sunlight shines on the battlefield. This has only occurred in the overworld in the Hoenn region, due to Groudon's presence in an area.
  • Rain: Rain falls on the battlefield. Different variations of this weather may appear on the overworld. This is the most common weather pattern that may be found on routes and occasionally in cities.
    • Heavy rain: Heavy rain slants across the battlefield, negating Fire-type attacks and causing weather-changing moves and Abilities to fail.
  • Sandstorm: Stinging sand whips across the battlefield. In Generations III through V, every new region had a specific area where a sandstorm was always occurring.
  • Hail: Pelting hail falls on the battlefield. Different variations of this weather may appear on the overworld, and there may even be benign falling snow that does not cause hail in a battle.
  • Shadowy aura: Bursts of light rain down from a shadowy aura in the sky. This type of weather is only present in Pokémon XD: Gale of Darkness and has no overworld manifestation anywhere.
  • Fog: A thick fog clouds the battlefield. This only had an in-battle effect during Generation IV, but it has been present in the overworld in other Generations in a purely aesthetic form.
  • Strong winds: An air current blows across the battlefield, eliminating the Flying type's weaknesses and causing weather-changing moves and Abilities to fail.

There is also a glitch that occurs in Pokémon Platinum, HeartGold and SoulSilver, called acid rain, that results in the simultaneous occurrence of all then-existing weather conditions at once, damaging all Pokémon on the field.

In Generation V, the weather was given an icon which appeared on the DS or 3DS's bottom screen in a battle whenever weather was occurring. Since fog and shadowy auras were only present in-battle before Generation V, they have no icons. When there is no weather, no icon is shown.

Game Intense sunlight Rain Sandstorm Hail
Sunlight icon BW.png Rain icon BW.png Sandstorm icon BW.png Hail icon BW.png
Sunlight icon B2W2.png Rain icon B2W2.png Sandstorm icon B2W2.png Hail icon B2W2.png

In Generation VI the background of the bottom screen shows an animation of the current weather.

Causing weather

Most of the types of weather have a move or Ability that will cause that weather.

Clear skies Intense sunlight Extremely harsh sunlight Rain Heavy rain Sandstorm Hail Shadowy aura Fog Strong winds
Move Defog* Sunny Day — Rain Dance — Sandstorm Hail Shadow Sky — —
Ability Air Lock,
Cloud Nine 		Drought Desolate Land Drizzle Primordial Sea Sand Stream Snow Warning — — Delta Stream

In addition, Defog may clear fog from an overworld area (in Generation IV only). It is the only move that has any effect on weather in the overworld.

Weather normally lasts for 5 turns when it is called by a move. Prior to Generation VI, weather created by an Ability would continue until the battle ended or another type of weather took its place; since Generation VI, though, weather created by Abilities also last for only 5 turns. However, there are four held items that can increase the duration of summoned weather effects, so that they last 8 turns. The rock that affects each type of weather is shown below.

Intense sunlight Rain Sandstorm Hail
Dream Heat Rock Sprite.png
Heat Rock 		Dream Damp Rock Sprite.png
Damp Rock 		Dream Smooth Rock Sprite.png
Smooth Rock 		Dream Icy Rock Sprite.png
Icy Rock

Effects

Three of the types of weather can do damage to Pokémon in battle at the end of a turn. In a sandstorm, hail, or shadowy aura, any Pokémon that is not Rock-, Ground-, or Steel-type; Ice-type; or a Shadow Pokémon (respectively) will be damaged for 1/16 of its maximum HP. Certain Abilities prevent damage from weather effects, though, and a Pokémon holding Safety Goggles is also immune to damage from weather effects.

Sandstorm and fog both affect the stats of Pokémon on the battlefield. Since Generation IV, in a sandstorm, the Special Defense of Rock-type Pokémon is increased by 50%. In fog, the accuracy of all Pokémon in battle is decreased.

During intense sunlight, all Pokémon are immune to freezing.

Intense sunlight and rain both affect the power of certain types of moves. Intense sunlight strengthens the power of Fire-type moves by 50% and weakens the power of Water-type moves by 50%, while rain does the opposite, strengthening Water-type moves while weakening Fire-type moves.

Certain specific moves are also affected in special ways by the weather.

  • The recovery moves Synthesis, Morning Sun, and Moonlight will recover different amounts* of HP depending on the weather: in clear skies, they recover 1/2 of the user's maximum HP; in intense sunlight, they recover 2/3 HP; and in other types of weather, they recover 1/4 HP.
  • The accuracy of Thunder, Hurricane, and Blizzard is affected by the weather. In hail, Blizzard ignores accuracy and evasion checks*, while Thunder* and Hurricane do the same in rain. During intense sunlight, however, Thunder and Hurricane only have 50% accuracy. In Pokémon Diamond and Pearl, Blizzard and Thunder also had a 30% chance to hit through Protect or Detect when used in their favored weather.
  • Solar Beam becomes a 1-turn move in intense sunlight, skipping its charge turn, but in rain, sandstorm, or hail, Solar Beam's power is halved.
  • Growth's stat increases double in intense sunlight (since Generation V).
  • When used as a field move in Generation IV or later, Sweet Scent will fail to work if there is a type of weather in effect in the area.

Activated Abilities

The following Abilities are activated when a type of weather comes into effect. Unless a type of weather is in effect, none of these Abilities has any effect.

Intense sunlight
Extremely harsh sunlight 		Rain
Heavy rain 		Sandstorm Hail
Forecast Forecast Sand Veil Forecast
Dry Skin Dry Skin Sand Rush Ice Body
Chlorophyll Hydration Sand Force Snow Cloak
Flower Gift Rain Dish
Leaf Guard Swift Swim
Solar Power

In addition to the above Abilities, Harvest is guaranteed to restore a Berry whenever it triggers in intense sunlight, and the Abilities Overcoat and Magic Guard will prevent weather-related damage.

Castform and Weather Ball

Main article: Castform (Pokémon)
Main article: Weather Ball (move)

Castform is a Pokémon uniquely designed to take advantage of the weather. Its Ability, Forecast, causes it to change form when a type of weather is present. Forecast does not cause a unique change for every possible type of weather, though.

Normal
351Castform Normal Dream.png
 Normal 
During clear skies, fog,
sandstorm, shadowy aura, and strong winds 		Sunny Form
351Castform Sunny Form Dream.png
 Fire 
During intense sunlight and extremely harsh sunlight 		Rainy Form
351Castform Rainy Form Dream.png
 Water 
During rain and heavy rain 		Snowy Form
351Castform Snowy Form Dream.png
 Ice 
During hail

Weather Ball is a move that uniquely takes advantage of the weather. In Generation III, it was introduced along with Castform and was Castform's signature move. Since then, a number of other Pokémon have become able to learn Weather Ball, but Castform remains the only Pokémon able to learn it by leveling up, without needing the services of a move relearner.

Whenever there is a type of weather present, Weather Ball's base power will double to 100. Weather Ball's type also changes during most types of weather.

During
clear skies*
 Normal  		During
intense sunlight/extremely harsh sunlight
 Fire  		During
rain/heavy rain
 Water  		During
sandstorm
 Rock  		During
hail
 Ice  		During
shadowy aura
 ???  		During
fog/strong winds
 Normal 

Because of its Ability, Castform has a unique synergy with Weather Ball that no other Pokémon that can learn Weather Ball has. In intense sunlight, rain, or hail, Castform will always get STAB thanks to its Ability.

Weather-dependent evolution

Starting at level 50, Sliggoo will evolve into Goodra if it is leveled up while it is raining in the overworld.

Middle Trigger
→
Level 50
while raining 		Highest
705Sliggoo.png
Sliggoo 		706Goodra.png
Goodra

Weather in Pokémon Mystery Dungeon

Various weather effects appear in certain dungeons in the Pokémon Mystery Dungeon series. Weather effects can change from floor to floor, and can also be altered through the use of Wonder Orbs. In Gates to Infinity, Pokémon will not restore health via walking unless the weather is Clear.

  • Clear: Allows Pokémon to restore HP by walking or holding the A and B buttons.
  • Sunny: Fire-type moves increase power by 50%, while the power of Water-type moves is cut in half.
  • Fog: The power of Electric-type moves is cut in half.
  • Snow: Ice-type Pokémon have an increased movement speed.
  • Rain: Water-type moves increase power by 50%, while the power of Fire-type moves is cut in half. Also prevents explosions from traps and moves like Selfdestruct.
  • Hail: Deals 5 points of damage to non-Ice types every 10 turns.
  • Sandstorm: Deals 5 points of damage to non-Rock, Ground, and Steel types every 10 turns.
  • Cloudy: Reduces the damage of all non-Normal-type moves by 25%.

Gates to Infinity descriptions

Clear Sunny Fog Snow Rain Hail Sandstorm Cloudy

The weather is clear and pleasant. In this weather, you can restore your HP naturally just by walking.

The sun blazes. In this weather, you can't restore your HP naturally. It boosts the power of Fire-type moves and weakens Water-type moves.

It's rainy and humid. In this weather, you can't restore your HP naturally. It boosts the power of Water-type moves and weakens the power of Fire-type moves.

A sandstorm rages. In this weather, you can't restore your HP naturally. Also, all Pokémon, except Ground, Rock, and Steel types, keep taking damage. Sp. Def of Rock types goes up.

Trivia

Weather conditions
Harsh sunlight • Rain • Sandstorm • Hail • Snow • Shadowy aura • Fog
Extremely harsh sunlight • Heavy rain • Strong winds


Project Games logo.png This game mechanic article is part of Project Games, a Bulbapedia project that aims to write comprehensive articles on the Pokémon games.
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