This page explains the effects of weather during battle.

Introduced in Pokémon Gold and Silver, battles can be subject to varying weather conditions, depending on the moves/abilities of the Pokémon and where they’re fighting (for instance, a location that’s heavily snowing may have constant Hail).

The effects of weather will apply to all Pokémon in battle. Only one weather condition can be present at one time. If a Pokémon’s move or Ability changes the weather, it will replace the previous weather condition.

Types of Weather and their Effects¶

Although some of these weather conditions can seem simple at first glance, like many things in Pokémon, there’s some additional complexity…

Intense Sun¶

Triggered by: Sunny Day, Drought

Effects:

• The power of Fire-type moves increases to 2x.
• The power of Water-moves is reduced to 0.5x.
• Solar Beam/Blade do not require charging.
• Thunder and Hurricane have reduced accuracy.
• Synthesis, Morning Sun and Moonlight are strengthened.

Rain¶

Triggered by: Rain Dance, Drizzle

Effects:

• The power of Water-type moves increases to 2x.
• The power of Fire-moves is reduced to 0.5x.
• Thunder and Hurricane have 100% accuracy.
• Synthesis, Morning Sun and Moonlight are weakened.

Hail¶

Triggered by: Hail, Snow Warning

Effects:

• Non Ice-types suffer residual damage.
• Blizzard has 100% accuracy.
• Synthesis, Morning Sun and Moonlight are weakened.

Sandstorm¶

Triggered by: Sandstorm, Sand Stream

Effects:

• Non Rock, Ground and Steel-types suffer residual damage.
• Rock-types gain 50% extra Special Defense.
• Synthesis, Morning Sun and Moonlight are weakened.