Weak toRockElectricPsychicIce ×1.6

Attacker	Type	Moveset	DPS
Regieleki	Electric	Lock OnThunder CageLegacy	41.8
Mewtwo	Psychic	ConfusionPsystrikeLegacy	38.0
Zeraora	Electric	Volt SwitchPlasma Fists	35.9
Zekrom	DragonElectric	Charge BeamFusion BoltLegacy	35.1
Xurkitree	Electric	Thunder ShockDischarge	34.6
Deoxys	Psychic	Zen HeadbuttThunderbolt	33.2
Alakazam	Psychic	ConfusionPsychicLegacy	32.4
Glimmora	RockPoison	Rock ThrowMeteor Beam	31.7
Azelf	Psychic	ConfusionFuturesight	31.5
Rampardos	Rock	Smack DownRock Slide	31.4
Hoopa	PsychicGhost	ConfusionPsychic	31.3
Espeon	Psychic	ConfusionPsychic	31.3

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

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

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

Questions people ask

What is Golbat weak to in Pokémon GO?

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

What's the best counter to Golbat?

Regieleki with Lock On and Thunder Cage, worth 41.8 damage per second against Golbat's own defense. The full ranking is above.