Weak toRockSteelWaterElectricIce ×1.6

Attacker	Type	Moveset	DPS
Regieleki	Electric	Lock OnThunder CageLegacy	30.1
Zeraora	Electric	Volt SwitchPlasma Fists	26.3
Zekrom	DragonElectric	Charge BeamFusion BoltLegacy	25.7
Xurkitree	Electric	Thunder ShockDischarge	25.4
Metagross	SteelPsychic	Bullet PunchMeteor MashLegacy	24.0
Inteleon	Water	Water GunHydro CannonLegacy	23.6
Kyogre	Water	WaterfallOrigin PulseLegacy	23.6
Tinkaton	FairySteel	Fairy WindGigaton HammerLegacy	23.3
Glimmora	RockPoison	Rock ThrowMeteor Beam	23.2
Rampardos	Rock	Smack DownRock Slide	23.0
Lucario	FightingSteel	Force PalmMeteor MashLegacy	22.8
Kyurem	DragonIce	Steel WingGlaciateLegacy	22.7

Rainy boosts the Electric attacks above. Partly cloudy and Windy boost Mega Aerodactyl.

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

Mega Aerodactyl's moveset, stats and CP All counters Raid board

Questions people ask

What is Mega Aerodactyl weak to in Pokémon GO?

Mega Aerodactyl takes 1.6 times from Rock, Steel, Water, Electric and Ice.

What's the best counter to Mega Aerodactyl?

Regieleki with Lock On and Thunder Cage, worth 30.1 damage per second against Mega Aerodactyl's own defense. The full ranking is above.