When the Pokémon with this ability enters the battle, all effects of weather are negated (though the weather itself does not disappear).
In extremely harsh sunlight, heavy rain or during heavy winds, Sunny Day, Rain Dance, Sandstorm and Hail will still fail if used and Abilities Drought, Drizzle, Sand Stream and Snow Warning fail to activate. All other weather conditions are negated by Cloud Nine.
Pokemon with this ability
As a Hidden Ability
- This ability's effects are identical to that of Air Lock.