Weak toFlyingGrassElectricPsychicFairy ×1.6

Attacker	Type	Moveset	DPS
Regieleki	Electric	Lock OnThunder CageLegacy	33.3
Mewtwo	Psychic	ConfusionPsystrikeLegacy	30.3
Enamorus	FairyFlying	Fairy WindFly	29.3
Zeraora	Electric	Volt SwitchPlasma Fists	28.6
Kartana	GrassSteel	Razor LeafLeaf Blade	28.5
Zekrom	DragonElectric	Charge BeamFusion BoltLegacy	27.9
Xurkitree	Electric	Thunder ShockDischarge	27.6
Tapu Lele	PsychicFairy	ConfusionNatures MadnessLegacy	27.3
Deoxys	Psychic	Zen HeadbuttThunderbolt	26.5
Tapu Koko	ElectricFairy	Volt SwitchNatures MadnessLegacy	26.2
Yveltal	DarkFlying	GustOblivion WingLegacy	25.9
Alakazam	Psychic	ConfusionPsychicLegacy	25.9

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

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

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

Questions people ask

What is Keldeo weak to in Pokémon GO?

Keldeo takes 1.6 times from Flying, Grass, Electric, Psychic and Fairy.

What's the best counter to Keldeo?

Regieleki with Lock On and Thunder Cage, worth 33.3 damage per second against Keldeo's own defense. The full ranking is above.