Water-type Pokémon

Pure Water-types

Strong against Fire, Ice, Steel and Water attacks; weak against Electric and Grass attacks
Squirtle
Wartortle
Blastoise
Psyduck
Golduck
Poliwag
Poliwhirl
Seel
Shellder
Krabby
Kingler
Horsea
Seadra
Goldeen
Seaking
Staryu
Magikarp
Vaporeon
Totodile
Croconaw
Feraligatr
Marill
Azumarill
Remoraid
Octillery
Suicune

Water/Dragon-types

Strong against Fire, Steel and Water attacks; weak against Dragon attacks
Kingdra

Water/Electric-types

Strong against Fire, Flying, Ice, Steel and Water attacks; weak against Grass and Ground attacks
Chinchou
Lanturn

Water/Fighting-types

Strong against Bug, Dark, Fire, Ice, Rock, Steel and Water attacks; weak against Electric, Flying, Grass and Psychic attacks
Poliwrath

Water/Flying-types

Immune to Ground attacks; strong against Bug, Fighting, Fire, Steel and Water attacks; weak against Electric and Rock attacks
Gyarados
Mantine

Water/Ground-types

Immune to Electric attacks; strong against Fire, Poison, Rock and Steel attacks; weak against Grass attacks
Wooper
Quagsire

Water/Ice-types

Strong against Ice and Water attacks; weak against Electric, Fighting, Grass and Rock attacks
Dewgong
Cloyster
Lapras

Water/Poison-types

Strong against Bug, Fighting, Fire, Ice, Poison, Steel and Water attacks; weak against Electric, Ground and Psychic attacks
Tentacool
Tentacruel
Qwilfish

Water/Psychic-types

Strong against Fighting, Fire, Ice, Psychic, Steel and Water attacks; weak against Bug, Dark, Electric, Ghost and Grass attacks
Slowpoke
Slowbro
Starmie
Slowking

Rock/Water-types

Strong against Fire, Flying, Ice, Normal and Poison attacks; weak against Electric, Fighting, Grass and Ground attacks
Omanyte
Omastar
Kabuto
Kabutops
Corsola