Water-type Pokémon are weak to Electric-type and Grass-type moves in the mainline games.

Basic Type Weakness

  • Water takes super-effective damage from:
    • Electric-type moves.
* Grass-type moves.
  • This applies to any pure Water-type; dual types can change or cancel these weaknesses. For example, Water/Ground is immune to Electric but 4× weak to Grass.

Extra Quirk: Freeze-Dry

There is one special Ice-type move, Freeze-Dry, that is coded to be super effective on Water-types, even though Water usually resists Ice.

This is a notable exception and can surprise players who expect Ice moves to be weak into Water.

What Water Resists

Knowing resistances helps you swap safely:

  • Water resists Fire, Steel, Water, and Ice-type moves.
  • This makes Water a solid defensive type overall, with only two standard weaknesses in most matchups.

Meta note: Fans often discuss adding more weaknesses to Water (like Poison or Ice) in forum threads, but in the official games the only standard weaknesses remain Electric and Grass.

TL;DR: Water is weak to Electric and Grass, and uniquely to the Ice move Freeze-Dry; it resists Fire, Steel, Water, and Ice.

Information gathered from public forums or data available on the internet and portrayed here.