Weak toBug ×2.56FightingFlyingPoisonFireIceFairy ×1.6

Attacker	Type	Moveset	DPS
Pheromosa	BugFighting	Bug BiteBug Buzz	35.3
Volcarona	BugFire	Bug BiteBug Buzz	29.7
Kartana	GrassSteel	Fury CutterX Scissor	29.1
Blacephalon	FireGhost	IncinerateMind BlownLegacy	28.3
Heracross	BugFighting	Fury CutterMegahorn	28.0
Kleavor	BugRock	Fury CutterX Scissor	27.6
Genesect	BugSteel	Fury CutterX Scissor	27.6
Vikavolt	BugElectric	Bug BiteX Scissor	27.4
Yanmega	BugFlying	Bug BiteBug Buzz	26.2
Pinsir	Bug	Fury CutterX Scissor	26.1
Frosmoth	IceBug	Bug BiteBug Buzz	26.1
Escavalier	BugSteel	Bug BiteMegahorn	25.9

Rainy boosts the Bug attacks above. Clear and Fog boost Wo-Chien.

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

Wo-Chien's moveset, CP and shiny All counters Raid board

Questions people ask

What is Wo-Chien weak to in Pokémon GO?

Wo-Chien takes 2.56 times damage from Bug, and 1.6 times from Fighting, Flying, Poison, Fire, Ice and Fairy.

What's the best counter to Wo-Chien?

Pheromosa with Bug Bite and Bug Buzz, worth 35.3 damage per second against Wo-Chien's own defense. The full ranking is above.