Weak toIce ×2.56DragonFairy ×1.6

Attacker	Type	Moveset	DPS
Eternatus	PoisonDragon	Dragon TailDynamax CannonLegacy	37.7
Chien-Pao	DarkIce	Powder SnowAvalanche	36.7
Baxcalibur	DragonIce	Ice FangAvalanche	36.5
Mamoswine	IceGround	Powder SnowAvalanche	34.8
Weavile	DarkIce	Ice ShardAvalanche	34.3
Glaceon	Ice	Frost BreathAvalanche	33.9
Kyurem	DragonIce	Dragon BreathGlaciateLegacy	32.6
Jynx	IcePsychic	Frost BreathAvalanche	31.9
Vanilluxe	Ice	Frost BreathAvalancheLegacy	31.2
Frosmoth	IceBug	Powder SnowIce Beam	30.4
Porygon-Z	Normal	Lock OnBlizzard	29.9
Mewtwo	Psychic	Psycho CutIce Beam	29.7

Snow boosts the Ice attacks above. Clear and Windy boost Garchomp.

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

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

Questions people ask

What is Garchomp weak to in Pokémon GO?

Garchomp takes 2.56 times damage from Ice, and 1.6 times from Dragon and Fairy.

What's the best counter to Garchomp?

Eternatus with Dragon Tail and Dynamax Cannon, worth 37.7 damage per second against Garchomp's own defense. The full ranking is above.