Weak toGrassElectric ×1.6

Attacker	Type	Moveset	DPS
Regieleki	Electric	Lock OnThunder CageLegacy	49.6
Zeraora	Electric	Volt SwitchPlasma Fists	42.6
Kartana	GrassSteel	Razor LeafLeaf Blade	42.5
Zekrom	DragonElectric	Charge BeamFusion BoltLegacy	41.6
Xurkitree	Electric	Thunder ShockDischarge	41.1
Roserade	GrassPoison	Magical LeafLeaf Storm	36.2
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	36.0
Deoxys	Psychic	Charge BeamThunderbolt	35.8
Electivire	Electric	Thunder ShockWild Charge	35.6
Zarude	DarkGrass	Vine WhipPower Whip	35.5
Rillaboom	Grass	Razor LeafFrenzy PlantLegacy	35.1
Raikou	Electric	Volt SwitchWild Charge	34.6

Rainy boosts the Electric attacks above. Rainy boosts Krabby.

Level 40, 15 attack IV, costed against Krabby's own defense and typing, one per evolution family.

Krabby's moveset, CP and shiny All counters Raid board

Questions people ask

What is Krabby weak to in Pokémon GO?

Krabby takes 1.6 times from Grass and Electric.

What's the best counter to Krabby?

Regieleki with Lock On and Thunder Cage, worth 49.6 damage per second against Krabby's own defense. The full ranking is above.