Weak toPoisonSteel ×1.6

Attacker	Type	Moveset	DPS
Eternatus	PoisonDragon	Poison JabSludge Bomb	63.8
Metagross	SteelPsychic	Bullet PunchMeteor MashLegacy	62.7
Tinkaton	FairySteel	Fairy WindGigaton HammerLegacy	60.9
Naganadel	PoisonDragon	Poison JabSludge Bomb	60.6
Lucario	FightingSteel	Force PalmMeteor MashLegacy	59.5
Nihilego	RockPoison	Poison JabSludge Bomb	57.5
Roserade	GrassPoison	Poison JabSludge Bomb	56.2
Dialga	SteelDragon	Metal ClawIron Head	55.5
Munkidori	PoisonPsychic	Poison JabSludge Bomb	55.1
Regigigas	Normal	Hidden PowerCrush GripLegacy	54.4
Genesect	BugSteel	Metal ClawMagnet Bomb	54.2
Revavroom	SteelPoison	Poison JabGunk Shot	53.0

Overcast boosts the Poison attacks above. Overcast and Partly cloudy boost Azurill.

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

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

Questions people ask

What is Azurill weak to in Pokémon GO?

Azurill takes 1.6 times from Poison and Steel.

What's the best counter to Azurill?

Eternatus with Poison Jab and Sludge Bomb, worth 63.8 damage per second against Azurill's own defense. The full ranking is above.