Weak toBugDark ×1.6

Attacker	Type	Moveset	DPS
Pheromosa	BugFighting	Bug BiteBug Buzz	27.4
Darkrai	Dark	SnarlDark Pulse	24.9
Absol	Dark	SnarlBrutal SwingLegacy	24.8
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	24.2
Zoroark	Dark	SnarlFoul Play	23.6
Chi-Yu	DarkFire	SnarlDark Pulse	23.5
Hydreigon	DarkDragon	BiteBrutal SwingLegacy	23.5
Volcarona	BugFire	Bug BiteBug Buzz	23.1
Tyranitar	RockDark	BiteBrutal Swing	23.1
Weavile	DarkIce	SnarlFoul Play	23.0
Chien-Pao	DarkIce	SnarlDark Pulse	22.9
Regigigas	Normal	Hidden PowerCrush GripLegacy	22.6

Fog boosts the Dark attacks above. Partly cloudy and Windy boost Oranguru.

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

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

Questions people ask

What is Oranguru weak to in Pokémon GO?

Oranguru takes 1.6 times from Bug and Dark.

What's the best counter to Oranguru?

Pheromosa with Bug Bite and Bug Buzz, worth 27.4 damage per second against Oranguru's own defense. The full ranking is above.