Difference between revisions of "Weather"

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* Fog first appeared in [[Generation III]] on [[Mt. Pyre]], but had no effect on battles.
* Fog first appeared in [[Generation III]] on [[Mt. Pyre]], but had no effect on battles.
* Snow technically exists as an overworld weather condition in Generation III, but it is unused.
* Snow technically exists as an overworld weather condition in Generation III, but it is unused.
* Several lines of unused weather effect text appear within the code of the games:
:{| 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}}
** Notably, quotes for {{DL|Weather conditions|fog}} exist within the text for Black and White, implying that fog was planned to exist in Black and White.

Revision as of 04:35, 19 November 2012

050Diglett.png This article is incomplete.
Please feel free to edit this article to add missing information and complete it.
Reason: images of each variation of snow and rain; images of weather effects in and out of battle in each generation they appeared in; locations subject to rain and hail in Generation V.

018Pidgeot.png It has been suggested that this article be moved to Weather.
Please discuss whether or not to move it on its talk page.

292Shedinja.png The contents of this article have been suggested to be split into intense sunlight, rain, sandstorm, hail, shadowy aura, and fog.
Please discuss it on the talk page for this article.

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.


In all generations since Generation II, some moves, such as Thunder and SolarBeam, take advantage of certain weather conditions and have increased power or accuracy. Other moves can directly cause or cease weather, such as Sunny Day and Defog. Beginning in Generation III, some Abilities have revolved around weather effects: the weather trio's Groudon and Kyogre's respective Abilities, Drought and Drizzle, can cause changes in the weather; while Rayquaza's Ability Air Lock neutralizes it.


Main article: Castform

One of the 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 Normal-type 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, Forecast. Also, when it is leveled up, it learns a move called 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 Rock-type move, and Shadow Sky, becoming a ???-type move.


Generation II

In the Generation II games, three moves were introduced that could change the weather during a battle to alter the playing field slightly. These moves were Sunny Day, which caused intense sunlight for five rounds, which allowed a Pokémon to attack with SolarBeam without waiting a turn; Rain Dance, which caused heavy rain for five rounds, which increased Thunder's accuracy to 100%; and Sandstorm, which caused a sandstorm. These three moves can change the course of a battle, with intense sun and heavy rain powering up Fire- and Water-type moves, and powering down the other, respectively, and a sandstorm slightly damaging any Pokémon that are not Rock-, Ground-, or Steel-type.

Although weather conditions were introduced in this generation, they could not be seen in the overworld until the next generation.

Generation III

The Generation III games introduced a new weather condition: hail. Hail is caused by the identically titled move Hail, which, like Sunny Day, Rain Dance, and Sandstorm before it, changes the weather for five turns. Hail, similar to sandstorm, slightly damages all Pokémon that are not Ice-type each turn.

The version mascots of Pokémon Ruby, Sapphire, and Emerald have weather-related Abilities. Ruby's Groudon's Drought causes intense sunlight until the battle ends or another weather effect takes its place; likewise, Sapphire's Kyogre's Drizzle causes heavy rain until the battle ends or another weather effect takes its place. Emerald's Rayquaza's Air Lock suppresses the effect of all weather conditions, but the weather itself continues. Psyduck and Golduck can also have the Ability Cloud Nine, which has the same effect as Air Lock.

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: Route 119 is often covered in rain; Route 111 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 Castform, a Pokémon that changes with the weather.

Tyranitar has the Ability 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 Lotad's Rain Dish.

Generation IV

In the Generation IV games Pokémon Diamond, Pearl, Platinum, HeartGold, and 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 Defog can remove it.

A new Ability is introduced that acts as a counterpart to some of the Abilities introduced in Generation III. Snow Warning causes a hailstorm for the duration of the battle, in the same way as Drought, Drizzle and Sand Stream. Four held items 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.

The move Hail now boosted the accuaracy of Blizzard to 100%; The move Sandstorm now boosted the Special Defence of Rock-type types by 50%.

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, Gravity makes all Pokémon fall to the ground, enabling all Pokémon to be susceptible to things such as Ground-type moves, Spikes, Arena Trap, and others; decreases the Evasion of all Pokémon by two stages; as well as disabling moves like Fly and Hi Jump Kick. Trick Room makes slower Pokémon attack first, and Tailwind doubles the Speed of the user's team for three turns.

Acid rain, a weather-related glitch, is present in HeartGold, SoulSilver, and Platinum, in which all weather conditions are present at once.

Generation V

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 Thundurus and 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 Defog.

Also introduced were several new Abilities that make use of the weather. Sand Rush and Sand Force both benefit a Pokémon during a sandstorm, while 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, Drought and Drizzle, previously available only to Groudon and Kyogre, are now available to more Pokémon. Specifically, Vulpix and Ninetales now have access to Drought, while Politoed now has access to Drizzle.

Types of weather

There have been six different weather conditions that affect battling in the main series of Pokémon games, and six different conditions that have effects in the overworld.

Intense sunlight

Spr 1g 006.png The picture used in this section is unsatisfactory.
Reason: Field-effect screenshot is from a hacked ROM while it should be from the actual game.
Please feel free to replace it so it conforms to Bulbapedia conventions.
Battling in intense sunlight
File:Sunny Field.png
The blindingly hot sun shines down

Heavy rain

Spr 1g 006.png The picture used in this section is unsatisfactory.
Reason: Field-effect screenshot is from a Hack ROM and from Generation III instead of V.
Please feel free to replace it so it conforms to Bulbapedia conventions.
Battling in heavy rain


Battling in a sandstorm
A sandstorm rages


Snow redirects here. For the tile, see Snow tile.

Battling in a hailstorm
  • Field effects: There have been four snowy conditions.
    • Light snow: Snow falls lightly and appears to fall vertically from the top of the screen. Found in Snowpoint City, and less often, in Acuity Lakefront and on Route 216. It also occurs in the most western areas of the Unova region during the wintertime. This overworld condition does not result in an in-battle condition.
    • Heavy snow: Snow falls more quickly and heavily, falling diagonally from one of the top corners of the screen (leaving the impression that it is being carried by strong winds), and sometimes appears to be mixed with hail. Found on Route 216, Acuity Lakefront and sometimes in Icirrus City and Route 8 during the Winter. In battle this overworld condition results in a hailstorm.
    • Blizzard: Snow whips around, making it difficult to see. Found on Route 217, and less often on Route 216. In battle this overworld condition results in a hailstorm.
    • Diamond dust: Small ice crystals twinkle in the air. Found on certain special days in Snowpoint City, Mt. Silver and Icirrus City. Diamond dust, however, does not have the same effect as other snowy conditions in battle and instead has no effect in battle.
  • Activating move: Hail
  • Activating Ability: Snow Warning
  • Routes where it is encountered naturally: Route 216, 217, Mt. Coronet peak, Mt. Silver peak.

Shadow Sky

Battling in Shadow Sky


Battling in the fog
Fog looming ahead

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 Orbs.

  • 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%.


It is raining.DPPtHGSS
A sandstorm is raging.DPPtHGSS
A downpour started!DPPtHGSS
The downpour continues.DPPtHGSS
Fog crept up as thick as soup!BWB2W2
The fog lifted.BWB2W2
The sandstorm rages.BWB2W2
The hail crashes down.BWB2W2
    • Notably, quotes for fog exist within the text for Black and White, implying that fog was planned to exist in Black and White.

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.