Weak toGhostDark ×1.6

Attacker	Type	Moveset	DPS
Blacephalon	FireGhost	AstonishShadow Ball	23.3
Darkrai	Dark	SnarlShadow Ball	21.0
Chandelure	GhostFire	HexShadow Ball	20.8
Gengar	GhostPoison	LickShadow BallLegacy	20.8
Absol	Dark	SnarlBrutal SwingLegacy	20.4
Dragapult	DragonGhost	AstonishShadow Ball	19.9
Hoopa	PsychicGhost	AstonishShadow Ball	19.5
Lunala	PsychicGhost	Shadow ClawShadow Ball	19.5
Eternatus	PoisonDragon	Dragon TailDynamax CannonLegacy	19.4
Gholdengo	SteelGhost	HexShadow Ball	19.4
Zoroark	Dark	SnarlFoul Play	19.4
Chi-Yu	DarkFire	SnarlDark Pulse	19.3

Fog boosts the Ghost attacks above. Fog boosts Cofagrigus.

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

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

Questions people ask

What is Cofagrigus weak to in Pokémon GO?

Cofagrigus takes 1.6 times from Ghost and Dark.

What's the best counter to Cofagrigus?

Blacephalon with Astonish and Shadow Ball, worth 23.3 damage per second against Cofagrigus's own defense. The full ranking is above.