Weak toGrassElectric ×1.6

Attacker	Type	Moveset	DPS
Regieleki	Electric	Lock OnThunder CageLegacy	50.0
Zeraora	Electric	Volt SwitchPlasma Fists	42.9
Kartana	GrassSteel	Razor LeafLeaf Blade	42.8
Zekrom	DragonElectric	Charge BeamFusion BoltLegacy	41.9
Xurkitree	Electric	Thunder ShockDischarge	41.4
Roserade	GrassPoison	Magical LeafLeaf Storm	36.5
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	36.3
Deoxys	Psychic	Charge BeamThunderbolt	36.1
Electivire	Electric	Thunder ShockWild Charge	35.9
Zarude	DarkGrass	Vine WhipPower Whip	35.8
Rillaboom	Grass	Razor LeafFrenzy PlantLegacy	35.3
Raikou	Electric	Volt SwitchWild Charge	34.9

Rainy boosts the Electric attacks above. Rainy boosts Poliwhirl.

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

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

Questions people ask

What is Poliwhirl weak to in Pokémon GO?

Poliwhirl takes 1.6 times from Grass and Electric.

What's the best counter to Poliwhirl?

Regieleki with Lock On and Thunder Cage, worth 50.0 damage per second against Poliwhirl's own defense. The full ranking is above.