First, make sure your Eevee's happiness is at a very high state. Giving it vitamins, keeping it in your party for a long time, and not letting it faint in battle will increase its happiness.
Then, level up your Eevee between 8:00PM and 12:00AM and it will evolve into an Umbreon.
Umbreon is a Dark type pokemon.
You can'T find it. You must bring your Umbreon and Espeon in your R/S/E/FR/LG game version and breed them to get an eevee.
Umbreon doesn't evolve!
Umbreon can only be gained from trading from Ruby, Emerald, Sapphire, Pokemon XD or Pokemon Collosseum.
Umbreon is in the ruins somewhere.
well, umbreon can be a boy or girl. but in Pokemon rescues if you're an eevee and evolve into umbreon then it depends on your gender. in the Pokemon pearl and diamond there r mostly boys, well in my game.
umbreon and espeon
You cannot get an umbreon on Pokemon Yellow as they were only introduced in Pokemon Silver and Gold and from then on. You can only get Vaporeon, Jolteon, and Flareon on Yellow.
umbreon definently
on national pokedex its umbreon
you start with an espeon and umbreon
Umbreon