Weak toBugGhostDark ×1.6

Attacker	Type	Moveset	DPS
Blacephalon	FireGhost	AstonishShadow Ball	48.5
Pheromosa	BugFighting	Bug BiteBug Buzz	46.8
Darkrai	Dark	SnarlShadow Ball	43.7
Chandelure	GhostFire	HexShadow Ball	43.3
Gengar	GhostPoison	LickShadow BallLegacy	43.3
Absol	Dark	SnarlBrutal SwingLegacy	42.4
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	41.4
Dragapult	DragonGhost	AstonishShadow Ball	41.3
Hoopa	PsychicGhost	AstonishShadow Ball	40.6
Lunala	PsychicGhost	Shadow ClawShadow Ball	40.5
Gholdengo	SteelGhost	HexShadow Ball	40.5
Zoroark	Dark	SnarlFoul Play	40.4

Fog boosts the Ghost attacks above. Windy boosts Wobbuffet.

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

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

Questions people ask

What is Wobbuffet weak to in Pokémon GO?

Wobbuffet takes 1.6 times from Bug, Ghost and Dark.

What's the best counter to Wobbuffet?

Blacephalon with Astonish and Shadow Ball, worth 48.5 damage per second against Wobbuffet's own defense. The full ranking is above.