Weak toGround ×2.56RockWaterPsychic ×1.6

Attacker	Type	Moveset	DPS
Groudon	Ground	Mud ShotPrecipice BladesLegacy	39.4
Excadrill	GroundSteel	Mud SlapEarthquake	37.4
Mamoswine	IceGround	Mud SlapHigh Horsepower	36.7
Rhyperior	GroundRock	Mud SlapEarthquake	35.5
Garchomp	DragonGround	Mud ShotEarthquake	35.1
Landorus	GroundFlying	Mud ShotEarth Power	34.9
Krookodile	GroundDark	Mud SlapEarthquake	33.8
Golurk	GroundGhost	Mud SlapEarth Power	32.2
Golem	RockGround	Mud SlapEarthquake	31.3
Torterra	GrassGround	Mud SlapEarthquake	30.1
Mewtwo	Psychic	ConfusionPsystrikeLegacy	29.7
Flygon	GroundDragon	Sand AttackEarthquake	29.7

Clear boosts the Ground attacks above. Clear and Overcast boost Iron Moth.

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

Iron Moth's moveset, CP and shiny All counters Raid board

Questions people ask

What is Iron Moth weak to in Pokémon GO?

Iron Moth takes 2.56 times damage from Ground, and 1.6 times from Rock, Water and Psychic.

What's the best counter to Iron Moth?

Groudon with Mud Shot and Precipice Blades, worth 39.4 damage per second against Iron Moth's own defense. The full ranking is above.