Weak toGround ×1.6

Attacker	Type	Moveset	DPS
Groudon	Ground	Mud ShotPrecipice BladesLegacy	35.6
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	34.3
Excadrill	GroundSteel	Mud SlapEarthquake	33.8
Mamoswine	IceGround	Mud SlapHigh Horsepower	33.2
Regigigas	Normal	Hidden PowerCrush GripLegacy	32.1
Rhyperior	GroundRock	Mud SlapEarthquake	32.0
Garchomp	DragonGround	Mud ShotEarthquake	31.7
Landorus	GroundFlying	Mud ShotEarth Power	31.6
Blacephalon	FireGhost	IncinerateMind BlownLegacy	31.1
Krookodile	GroundDark	Mud SlapEarthquake	30.5
Golurk	GroundGhost	Mud SlapEarth Power	29.1
Golem	RockGround	Mud SlapEarthquake	28.3

Clear boosts the Ground attacks above. Rainy boosts Boltund.

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

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

Questions people ask

What is Boltund weak to in Pokémon GO?

Boltund takes 1.6 times from Ground.

What's the best counter to Boltund?

Groudon with Mud Shot and Precipice Blades, worth 35.6 damage per second against Boltund's own defense. The full ranking is above.