Weak toBugGhostDark ×1.6

Attacker	Type	Moveset	DPS
Blacephalon	FireGhost	AstonishShadow Ball	58.1
Pheromosa	BugFighting	Bug BiteBug Buzz	56.1
Darkrai	Dark	SnarlShadow Ball	52.3
Chandelure	GhostFire	HexShadow Ball	51.9
Gengar	GhostPoison	LickShadow BallLegacy	51.9
Absol	Dark	SnarlBrutal SwingLegacy	50.8
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	49.6
Dragapult	DragonGhost	AstonishShadow Ball	49.5
Hoopa	PsychicGhost	AstonishShadow Ball	48.6
Lunala	PsychicGhost	Shadow ClawShadow Ball	48.5
Gholdengo	SteelGhost	HexShadow Ball	48.5
Zoroark	Dark	SnarlFoul Play	48.4

Fog boosts the Ghost attacks above. Windy boosts Wynaut.

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

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

Questions people ask

What is Wynaut weak to in Pokémon GO?

Wynaut takes 1.6 times from Bug, Ghost and Dark.

What's the best counter to Wynaut?

Blacephalon with Astonish and Shadow Ball, worth 58.1 damage per second against Wynaut's own defense. The full ranking is above.