Weak toFightingGroundSteelIceDragonFairy ×1.6

Attacker	Type	Moveset	DPS
Eternatus	PoisonDragon	Dragon TailDynamax CannonLegacy	38.0
Lucario	FightingSteel	Force PalmAura SphereLegacy	30.0
Baxcalibur	DragonIce	Ice FangGlaive RushLegacy	29.4
Rayquaza	DragonFlying	Dragon TailBreaking SwipeLegacy	27.9
Haxorus	Dragon	Dragon TailBreaking SwipeLegacy	27.9
Palkia	WaterDragon	Dragon TailDraco Meteor	27.9
Salamence	DragonFlying	Dragon TailDraco Meteor	27.6
Pheromosa	BugFighting	Low KickFocus Blast	27.4
Tinkaton	FairySteel	Fairy WindGigaton HammerLegacy	27.4
Terrakion	RockFighting	Double KickSacred SwordLegacy	27.3
Blaziken	FireFighting	CounterAura Sphere	27.1
Dialga	SteelDragon	Metal ClawDraco Meteor	27.0

Windy boosts the Dragon attacks above. Partly cloudy and Windy boost Tyrantrum.

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

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

Questions people ask

What is Tyrantrum weak to in Pokémon GO?

Tyrantrum takes 1.6 times from Fighting, Ground, Steel, Ice, Dragon and Fairy.

What's the best counter to Tyrantrum?

Eternatus with Dragon Tail and Dynamax Cannon, worth 38.0 damage per second against Tyrantrum's own defense. The full ranking is above.