Weak toFightingRockSteelFire ×1.6

Attacker	Type	Moveset	DPS
Blacephalon	FireGhost	IncinerateMind BlownLegacy	28.5
Lucario	FightingSteel	Force PalmAura SphereLegacy	24.2
Reshiram	DragonFire	Fire FangFusion FlareLegacy	23.7
Pheromosa	BugFighting	Low KickFocus Blast	22.1
Terrakion	RockFighting	Double KickSacred SwordLegacy	22.1
Blaziken	FireFighting	CounterAura Sphere	21.9
Chandelure	GhostFire	Fire SpinOverheat	21.7
Cinderace	Fire	Fire SpinPyroball	21.4
Volcarona	BugFire	Fire SpinOverheat	21.2
Metagross	SteelPsychic	Bullet PunchMeteor MashLegacy	21.1
Darmanitan	Fire	Fire FangOverheat	21.1
Kartana	GrassSteel	Fury CutterSacred Sword	20.9

Overcast boosts the Fighting attacks above. Snow boosts Avalugg.

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

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

Questions people ask

What is Avalugg weak to in Pokémon GO?

Avalugg takes 1.6 times from Fighting, Rock, Steel and Fire.

What's the best counter to Avalugg?

Blacephalon with Incinerate and Mind Blown, worth 28.5 damage per second against Avalugg's own defense. The full ranking is above.