Water-type Pokémon are weak to Electric-type and Grass-type moves.

Quick Scoop: Water-Type Weaknesses

  • Water-type Pokémon take super-effective damage from Electric-type moves (like Thunderbolt or Thunder).
  • They also take super-effective damage from Grass-type moves (like Giga Drain or Leaf Blade).

In the type chart, that means:

  • Electric → Water: 2× damage.
  • Grass → Water: 2× damage.

So if you’re asking “what is Water type weak to,” the practical answer in battles is: bring Electric or Grass attacks to hit Water-types for extra damage.