Weather: Difference between revisions

Clear redirects here. For the location in the Pokémon Mystery Dungeon: Explorers of Sky demo, see Mt. Clear.

This article is incomplete. Please feel free to edit this article to add missing information and complete it. Reason: Generation VI and VII 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 core 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 held items (Heat, Damp, Smooth, and Icy Rocks) that increase the duration of weather caused by weather-changing moves or Abilities with effects on weather conditions. 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.
• Harsh sunlight: Strong sunlight shines on the battlefield. It is one of the rarest conditions to be seen in the overworld.
  • Extremely harsh sunlight: Sunlight shines more heavily on the battlefield. This has only occurred in the overworld in the Hoenn region, in Pokémon Omega Ruby, due to Groudon's emergence.
• 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: Rain falls more chaotically around the battlefield. This has only occurred in the overworld in the Hoenn region, in Pokémon Alpha Sapphire, due to Kyogre's emergence.
• 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. There may also be benign falling snow that does not cause hail in a battle.
  • Diamond dust: A special, purely aesthetic version of snow. It first appeared as an easter egg in Pokémon Diamond and Pearl, and has appeared in several core series games since.
• 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: A strong air current blows across the battlefield. This weather can only be present in battle, as a result of Mega Rayquaza's Ability.

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 aura do not appear in-battle in Generation V, they have no icons. When there is no weather, no icon is shown.

Game	Harsh sunlight	Rain	Sandstorm	Hail
BW
B2W2

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

In Pokémon Sun, Moon, Ultra Sun, and Ultra Moon, the 3DS's bottom screen displays an icon and background animation of the current weather.

Game	Harsh sunlight	Rain	Sandstorm	Hail
SM
USUM

Causing weather

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

Air Lock and Cloud Nine also suspend the effects of weather while they are active.

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, weather created by Abilities also lasts for only 5 turns, with the exception of weather created by Desolate Land, Primordial Sea, and Delta Stream.

If multiple Pokémon with Abilities that change the weather are sent in simultaneously, the Abilities activate in order from fastest Pokémon to slowest Pokémon (or the reverse during Trick Room); this means that the slowest Pokémon's Ability will override the other Abilities.

If a Pokémon holding one of four held items creates weather that would otherwise last 5 turns, it instead lasts 8 turns. The rock that affects each type of weather is shown below.

Harsh sunlight	Rain	Sandstorm	Hail
Heat Rock	Damp Rock	Smooth Rock	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 harsh sunlight, all Pokémon are immune to freezing.

Harsh sunlight and rain both affect the power of certain types of moves. Harsh 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 by 50% while weakening Fire-type moves by 50%.

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

• The recovery moves Synthesis, Morning Sun, and Moonlight restore more HP than usual in harsh sunlight, and less than usual in most other weather.
  • In Generation II, during no weather they normally restore ¼ total HP, during harsh sunlight they normally restore ½ total HP, and during other weather they normally restore ⅛ total HP. Except in link battles, the amount of HP restored is doubled if it is the move's preferred time of day (morning for Morning Sun, day for Synthesis, night for Moonlight).
  • From Generation III onward, during no weather or a strong winds they restore ½ total HP, during harsh sunlight they restore ⅔ total HP, and during other weather they restore ¼ total HP.
• The move Shore Up restores ⅔ of the user's total HP during a sandstorm; outside of a sandstorm, it only restores ½ total HP.
• The accuracy of Thunder, Hurricane, and Blizzard is affected by the weather.
  • From Generation VI onward, during hail Blizzard ignores accuracy and evasion checks.
  • During rain, Thunder and Hurricane ignore accuracy and evasion checks; during harsh sunlight, Thunder and Hurricane only have 50% accuracy.
  • In Pokémon Diamond and Pearl only, Blizzard and Thunder also have a 30% chance to hit through Protect or Detect when used in hail or rain, respectively.
• Solar Beam and Solar Blade become 1-turn moves in harsh sunlight, skipping their charge turn; in rain, sandstorm, hail, and fog, the move's power is halved.
• From Generation V onward, during harsh sunlight Growth increases the user's Attack and Special Attack by 2 stages instead of 1 stage.
• In Generations IV and V, and Pokémon X and Y, when used as a field move Sweet Scent fails if there is a non-aesthetic weather effect in the area.
• The move Aurora Veil can only be used successfully during hail; outside of hail, it fails.

Activated Abilities

The following Abilities are activated when a type of weather comes into effect. Most of these Abilities have no effect if no weather is active.

In addition to the above Abilities, Harvest is guaranteed to restore a Berry whenever it triggers in harsh 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  Normal  During clear skies, fog, sandstorm, shadowy aura, and a strong winds

Sunny Form  Fire  During harsh sunlight and extremely harsh sunlight

Rainy Form  Water  During rain and heavy rain

Snowy Form  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.

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.

Because of its Ability, Castform has a unique synergy with Weather Ball that no other Pokémon that can learn Weather Ball has. In harsh 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 during rain or fog in the overworld.

First evolution		Second evolution
	→ Level up while raining or foggy
Sliggoo  Dragon		Goodra  Dragon

In other games

In the Pokémon Mystery Dungeon series

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 regenerate HP only if the weather is Clear, or if it is holding a Weather Band. In Super Mystery Dungeon, Pokémon can regenerate HP in any weather as long as they do not take damage from the weather condition, or if it is holding a Weather Looplet.

• Clear: None^RBTDS, Pokémon will restore health as turns go by^GtISMD
• 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. Also turns Castform into a Water type. This weather effect is only available in the Rescue Team and Explorers games.
• Snow: Ice-type Pokémon have an increased Movement Speed. Also turns Castform into an Ice type. This weather effect is only available in the Rescue Team and Explorers games.
• 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^RB/3^TDS/1^GtISMD points of damage to non-Ice types every 10 turns.
• Sandstorm: Deals 5^RB/3^TDS/1^GtISMD 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%. This weather effect is only available in the Rescue Team and Explorers games.
• Harsh sunlight: Fire-type moves increase power by 50%, while Water-type moves are nullified. This weather effect is only available in Pokémon Super Mystery Dungeon.
• Heavy Rain: Water-type moves increase power by 50%, while Fire-type moves are nullified. This weather effect is only available in Pokémon Super Mystery Dungeon.
• Strong Winds: Moves that would be super effective against pure Flying-type Pokémon will only be normally effective. This weather effect is only available in Pokémon Super Mystery Dungeon.

Description

Gates to Infinity

Super Mystery Dungeon

Appearance

Sunny

Generation I	RBY	Generation I (Japanese)	Generation I (international)	Generation II	Generation II (Japanese)	Generation II (international)	Crystal	Generation III	Generation III (Japanese)	Generation III (international)	RS	FRLG	FRLGE	Generation IV	Generation IV (Japanese)	Generation IV (international)	PtHGSS	HGSS	Generation V	BW	B2W2	Generation V (Japanese)	Generation V (international)	Generation VI	XY	ORAS	Generation VII	SMUSUM	LGPE	Generation VIII	SwSh	BDSP	Legends: Arceus	Generation IX	Stadium (JP)	Stadium	Stadium 2	Colosseum	XD	Battle Revolution	Battrio	MD: Red and Blue	MD:Time, Darkness, andSky	MD: Blazing, Stormy, & Light Adventure Squad	MD: GTI	SMD	MD: RTDX	Rumble	Rumble Blast	Masters EX

Fog

Generation I	RBY	Generation I (Japanese)	Generation I (international)	Generation II	Generation II (Japanese)	Generation II (international)	Crystal	Generation III	Generation III (Japanese)	Generation III (international)	RS	FRLG	FRLGE	Generation IV	Generation IV (Japanese)	Generation IV (international)	PtHGSS	HGSS	Generation V	BW	B2W2	Generation V (Japanese)	Generation V (international)	Generation VI	XY	ORAS	Generation VII	SMUSUM	LGPE	Generation VIII	SwSh	BDSP	Legends: Arceus	Generation IX	Stadium (JP)	Stadium	Stadium 2	Colosseum	XD	Battle Revolution	Battrio	MD: Red and Blue	MD:Time, Darkness, andSky	MD: Blazing, Stormy, & Light Adventure Squad	MD: GTI	SMD	MD: RTDX	Rumble	Rumble Blast	Masters EX

Snow

Generation I	RBY	Generation I (Japanese)	Generation I (international)	Generation II	Generation II (Japanese)	Generation II (international)	Crystal	Generation III	Generation III (Japanese)	Generation III (international)	RS	FRLG	FRLGE	Generation IV	Generation IV (Japanese)	Generation IV (international)	PtHGSS	HGSS	Generation V	BW	B2W2	Generation V (Japanese)	Generation V (international)	Generation VI	XY	ORAS	Generation VII	SMUSUM	LGPE	Generation VIII	SwSh	BDSP	Legends: Arceus	Generation IX	Stadium (JP)	Stadium	Stadium 2	Colosseum	XD	Battle Revolution	Battrio	MD: Red and Blue	MD:Time, Darkness, andSky	MD: Blazing, Stormy, & Light Adventure Squad	MD: GTI	SMD	MD: RTDX	Rumble	Rumble Blast	Masters EX

Rain

Generation I	RBY	Generation I (Japanese)	Generation I (international)	Generation II	Generation II (Japanese)	Generation II (international)	Crystal	Generation III	Generation III (Japanese)	Generation III (international)	RS	FRLG	FRLGE	Generation IV	Generation IV (Japanese)	Generation IV (international)	PtHGSS	HGSS	Generation V	BW	B2W2	Generation V (Japanese)	Generation V (international)	Generation VI	XY	ORAS	Generation VII	SMUSUM	LGPE	Generation VIII	SwSh	BDSP	Legends: Arceus	Generation IX	Stadium (JP)	Stadium	Stadium 2	Colosseum	XD	Battle Revolution	Battrio	MD: Red and Blue	MD:Time, Darkness, andSky	MD: Blazing, Stormy, & Light Adventure Squad	MD: GTI	SMD	MD: RTDX	Rumble	Rumble Blast	Masters EX

Hail

Generation I	RBY	Generation I (Japanese)	Generation I (international)	Generation II	Generation II (Japanese)	Generation II (international)	Crystal	Generation III	Generation III (Japanese)	Generation III (international)	RS	FRLG	FRLGE	Generation IV	Generation IV (Japanese)	Generation IV (international)	PtHGSS	HGSS	Generation V	BW	B2W2	Generation V (Japanese)	Generation V (international)	Generation VI	XY	ORAS	Generation VII	SMUSUM	LGPE	Generation VIII	SwSh	BDSP	Legends: Arceus	Generation IX	Stadium (JP)	Stadium	Stadium 2	Colosseum	XD	Battle Revolution	Battrio	MD: Red and Blue	MD:Time, Darkness, andSky	MD: Blazing, Stormy, & Light Adventure Squad	MD: GTI	SMD	MD: RTDX	Rumble	Rumble Blast	Masters EX

Sandstorm

Generation I	RBY	Generation I (Japanese)	Generation I (international)	Generation II	Generation II (Japanese)	Generation II (international)	Crystal	Generation III	Generation III (Japanese)	Generation III (international)	RS	FRLG	FRLGE	Generation IV	Generation IV (Japanese)	Generation IV (international)	PtHGSS	HGSS	Generation V	BW	B2W2	Generation V (Japanese)	Generation V (international)	Generation VI	XY	ORAS	Generation VII	SMUSUM	LGPE	Generation VIII	SwSh	BDSP	Legends: Arceus	Generation IX	Stadium (JP)	Stadium	Stadium 2	Colosseum	XD	Battle Revolution	Battrio	MD: Red and Blue	MD:Time, Darkness, andSky	MD: Blazing, Stormy, & Light Adventure Squad	MD: GTI	SMD	MD: RTDX	Rumble	Rumble Blast	Masters EX

Cloudy

Generation I	RBY	Generation I (Japanese)	Generation I (international)	Generation II	Generation II (Japanese)	Generation II (international)	Crystal	Generation III	Generation III (Japanese)	Generation III (international)	RS	FRLG	FRLGE	Generation IV	Generation IV (Japanese)	Generation IV (international)	PtHGSS	HGSS	Generation V	BW	B2W2	Generation V (Japanese)	Generation V (international)	Generation VI	XY	ORAS	Generation VII	SMUSUM	LGPE	Generation VIII	SwSh	BDSP	Legends: Arceus	Generation IX	Stadium (JP)	Stadium	Stadium 2	Colosseum	XD	Battle Revolution	Battrio	MD: Red and Blue	MD:Time, Darkness, andSky	MD: Blazing, Stormy, & Light Adventure Squad	MD: GTI	SMD	MD: RTDX	Rumble	Rumble Blast	Masters EX

Pokémon GO

Weather status screen showing the current weather and effects on boosted types

Various weather effects appear in Pokémon GO, intended to reflect the actual weather of the player's location. Weather in each local area is updated every hour, on the hour, via Accuweather. Different weathers affect certain Pokémon types, and effects include:

• Increasing the power of moves of boosted types in Gym and Raid Battles by 20% (rounded down to the nearest integer)
• Wild Pokémon with a weather-boosted type...
  • spawn more frequently
  • award 25% extra Stardust when caught
  • are guaranteed to have at least 4 IVs in each stat.
  • are five Power Up levels higher than normal (capped at 35 instead of 30 for wild Pokémon, 25 instead of 20 for Raid Bosses)
• The form of wild Castform depends on the weather
• The form of wild Cherrim depends on the weather; they appear in Sunshine Form during sunny/clear weather

Weather bonuses are not applied for Pokémon encounters from Field or Special Research. Bonus damage is also not applied in Trainer Battles.

Weather	Day and night icons	Types boosted	Castform form
Sunny/Clear*		Grass, Ground, Fire	Sunny
Rainy		Water, Electric, Bug	Rainy
Partly cloudy		Normal, Rock	Normal
Cloudy		Fairy, Fighting, Poison	Normal
Windy		Flying, Dragon, Psychic	Normal
Snow		Ice, Steel	Snowy
Fog		Dark, Ghost	Snowy

Trivia

Four snowflakes falling that goes unused.

• The Weather Institute in Hoenn is dedicated to the study of weather. It is said to have created Castform, a Pokémon that changes with the weather.
• All weather-creating Abilities (Drought, Drizzle, Sand Stream, and Snow Warning) debuted the generation after their respective moves/weather (Sunny Day, Rain Dance, Sandstorm, and Hail).
• The Generation III core games internal data contains an unused overworld weather effect of four falling snowflakes.

In other languages

Language Title Chinese Cantonese 天氣 Tīnhei Mandarin 天氣 / 天气 Tiānqì French Climat German Wetter Indonesian Cuaca Italian Condizione atmosferica Korean 날씨 Nalssi Malaysian Cuaca Portuguese Tempo* Spanish Tiempo atmosférico Thai สภาพอากาศ Saphap akat Vietnamese Thời tiết

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