Weak toGroundElectricPsychic ×1.6

Attacker	Type	Moveset	DPS
Regieleki	Electric	Lock OnThunder CageLegacy	23.9
Mewtwo	Psychic	ConfusionPsystrikeLegacy	21.8
Zeraora	Electric	Volt SwitchPlasma Fists	20.6
Zekrom	DragonElectric	Charge BeamFusion BoltLegacy	20.1
Xurkitree	Electric	Thunder ShockDischarge	19.9
Deoxys	Psychic	Zen HeadbuttThunderbolt	19.0
Alakazam	Psychic	ConfusionPsychicLegacy	18.6
Groudon	Ground	Mud ShotPrecipice BladesLegacy	18.0
Azelf	Psychic	ConfusionFuturesight	18.0
Hoopa	PsychicGhost	ConfusionPsychic	17.9
Espeon	Psychic	ConfusionPsychic	17.9
Regigigas	Normal	Zen HeadbuttCrush GripLegacy	17.9

Rainy boosts the Electric attacks above. Overcast and Rainy boost Toxapex.

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

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

Questions people ask

What is Toxapex weak to in Pokémon GO?

Toxapex takes 1.6 times from Ground, Electric and Psychic.

What's the best counter to Toxapex?

Regieleki with Lock On and Thunder Cage, worth 23.9 damage per second against Toxapex's own defense. The full ranking is above.