Weak toRockElectricPsychicIce ×1.6

Attacker	Type	Moveset	DPS
Regieleki	Electric	Lock OnThunder CageLegacy	35.7
Mewtwo	Psychic	ConfusionPsystrikeLegacy	32.5
Zeraora	Electric	Volt SwitchPlasma Fists	30.7
Zekrom	DragonElectric	Charge BeamFusion BoltLegacy	30.0
Xurkitree	Electric	Thunder ShockDischarge	29.6
Deoxys	Psychic	Zen HeadbuttThunderbolt	28.4
Alakazam	Psychic	ConfusionPsychicLegacy	27.7
Glimmora	RockPoison	Rock ThrowMeteor Beam	27.1
Azelf	Psychic	ConfusionFuturesight	26.9
Rampardos	Rock	Smack DownRock Slide	26.8
Hoopa	PsychicGhost	ConfusionPsychic	26.8
Espeon	Psychic	ConfusionPsychic	26.8

Rainy boosts the Electric attacks above. Overcast and Windy boost Crobat.

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

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

Questions people ask

What is Crobat weak to in Pokémon GO?

Crobat takes 1.6 times from Rock, Electric, Psychic and Ice.

What's the best counter to Crobat?

Regieleki with Lock On and Thunder Cage, worth 35.7 damage per second against Crobat's own defense. The full ranking is above.