Volcarona's Weaknesses

Best Counters

Volcarona is especially weak against Rock type Pokemon, they will deal 4x damage to it!

The types that are strong against Volcarona are Rock, Flying, Water type Pokemon.

For the best defense, Rock and Fire types have very effective defense against Volcarona, and will be resistant to damage from Volcarona's STAB attacks:

Weaknesses

Volcarona's type is Bug and Fire.

Volcarona is especially vulnerable to Rock attacks, it will receive a super effective four times (4x) the amount of damage! Since Rock type Pokemon are especially strong against Volcarona, you should attack with this type of Pokemon.

Volcarona has a weakness to Rock, Flying, Water types. These Pokemon types will be strong against Volcarona, causing Volcarona to take a super effective quadruple (4x) damage from Rock type attacks, and causing Volcarona to take a super effective double (2x) damage from Flying and Water type attacks.

Please keep in mind that Volcarona is resistant to attacks from Bug, Fairy, Fighting, Ice, Steel, Grass types, and these attacks are not very effective and cause reduced damage, so they should be avoided.