What is how to evolve eevee into umbreon?

To evolve Eevee into Umbreon, you need to meet specific conditions:

  • Friendship/Affection: Eevee must have a high friendship level with you. This is typically measured by a hidden stat in the game. Increase it by having Eevee in your party, battling with it, feeding it berries (in some games), or using it in Pokemon Camp (Sword/Shield) or Pokemon Refresh (Sun/Moon).

  • Time of Day: Eevee must level up during nighttime. Be sure it is actually nighttime in your game, as determined by the in-game clock.

  • No Fairy-type move: Ensure that Eevee does not know any Fairy-type moves. If it does, delete the Fairy-type move using a Move Deleter. This is important because if Eevee levels up at night with high friendship and knows a Fairy-type move, it will evolve into Sylveon instead.