Weak toIce ×2.56RockDragonFairy ×1.6

Attacker	Type	Moveset	DPS
Eternatus	PoisonDragon	Dragon TailDynamax CannonLegacy	42.4
Chien-Pao	DarkIce	Powder SnowAvalanche	41.2
Baxcalibur	DragonIce	Ice FangAvalanche	41.1
Mamoswine	IceGround	Powder SnowAvalanche	39.2
Weavile	DarkIce	Ice ShardAvalanche	38.6
Glaceon	Ice	Frost BreathAvalanche	38.1
Kyurem	DragonIce	Dragon BreathGlaciateLegacy	36.7
Jynx	IcePsychic	Frost BreathAvalanche	35.8
Vanilluxe	Ice	Frost BreathAvalancheLegacy	35.1
Frosmoth	IceBug	Powder SnowIce Beam	34.2
Porygon-Z	Normal	Lock OnBlizzard	33.6
Mewtwo	Psychic	Psycho CutIce Beam	33.4

Snow boosts the Ice attacks above. Windy boosts Rayquaza.

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

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

Questions people ask

What is Rayquaza weak to in Pokémon GO?

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

What's the best counter to Rayquaza?

Eternatus with Dragon Tail and Dynamax Cannon, worth 42.4 damage per second against Rayquaza's own defense. The full ranking is above.