Weak toGround ×1.6

Attacker	Type	Moveset	DPS
Groudon	Ground	Mud ShotPrecipice BladesLegacy	55.2
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	53.3
Excadrill	GroundSteel	Mud SlapEarthquake	52.5
Mamoswine	IceGround	Mud SlapHigh Horsepower	51.5
Regigigas	Normal	Hidden PowerCrush GripLegacy	49.8
Rhyperior	GroundRock	Mud SlapEarthquake	49.8
Garchomp	DragonGround	Mud ShotEarthquake	49.2
Landorus	GroundFlying	Mud ShotEarth Power	49.0
Blacephalon	FireGhost	IncinerateMind BlownLegacy	48.4
Krookodile	GroundDark	Mud SlapEarthquake	47.4
Golurk	GroundGhost	Mud SlapEarth Power	45.2
Golem	RockGround	Mud SlapEarthquake	43.9

Clear boosts the Ground attacks above. Rainy boosts Mareep.

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

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

Questions people ask

What is Mareep weak to in Pokémon GO?

Mareep takes 1.6 times from Ground.

What's the best counter to Mareep?

Groudon with Mud Shot and Precipice Blades, worth 55.2 damage per second against Mareep's own defense. The full ranking is above.