Weak toGroundWater ×2.56FightingRock ×1.6

Attacker	Type	Moveset	DPS
Inteleon	Water	Water GunHydro CannonLegacy	40.0
Kyogre	Water	WaterfallOrigin PulseLegacy	39.8
Groudon	Ground	Mud ShotPrecipice BladesLegacy	39.0
Kingler	Water	BubbleCrabhammer	37.8
Greninja	WaterDark	Water ShurikenHydro CannonLegacy	37.6
Excadrill	GroundSteel	Mud SlapEarthquake	37.0
Mamoswine	IceGround	Mud SlapHigh Horsepower	36.4
Quaquaval	WaterFighting	Water GunHydro CannonLegacy	36.2
Primarina	WaterFairy	WaterfallHydro CannonLegacy	35.6
Rhyperior	GroundRock	Mud SlapEarthquake	35.1
Garchomp	DragonGround	Mud ShotEarthquake	34.8
Landorus	GroundFlying	Mud ShotEarth Power	34.6

Rainy boosts the Water attacks above. Clear and Partly cloudy boost Coalossal.

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

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

Questions people ask

What is Coalossal weak to in Pokémon GO?

Coalossal takes 2.56 times damage from Ground and Water, and 1.6 times from Fighting and Rock.

What's the best counter to Coalossal?

Inteleon with Water Gun and Hydro Cannon, worth 40.0 damage per second against Coalossal's own defense. The full ranking is above.