Weak toFighting ×2.56BugFairy ×1.6

Attacker	Type	Moveset	DPS
Lucario	FightingSteel	Force PalmAura SphereLegacy	116.2
Pheromosa	BugFighting	Low KickFocus Blast	106.3
Terrakion	RockFighting	Double KickSacred SwordLegacy	105.9
Blaziken	FireFighting	CounterAura Sphere	105.0
Kartana	GrassSteel	Fury CutterSacred Sword	100.2
Conkeldurr	Fighting	Force PalmFocus Blast	96.8
Keldeo	WaterFighting	Low KickSacred Sword	95.9
Breloom	GrassFighting	Force PalmDynamic Punch	95.6
Urshifu	Fighting	CounterDynamic Punch	94.9
Marshadow	FightingGhost	CounterClose Combat	92.7
Mewtwo	Psychic	CounterFocus BlastLegacy	92.3
Machamp	Fighting	CounterDynamic Punch	87.8

Overcast boosts the Fighting attacks above. Fog and Partly cloudy boost Alolan Rattata.

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

Alolan Rattata's moveset, stats and CP All counters Raid board

Questions people ask

What is Alolan Rattata weak to in Pokémon GO?

Alolan Rattata takes 2.56 times damage from Fighting, and 1.6 times from Bug and Fairy.

What's the best counter to Alolan Rattata?

Lucario with Force Palm and Aura Sphere, worth 116.2 damage per second against Alolan Rattata's own defense. The full ranking is above.