Eevee has eight different evolutions in Pokémon Go. One of these evolutions is Umbreon, a Dark-type Pokémon. It is a favorite of players who regularly compete in the Big and Ultra Leagues, PvP matches of Pokémon Go. Umbreon is considered one of the strongest choices, as long as it has a good team to back it up. However, as Eevee evolutions vary, evolving an Eevee into an Umbreon can be a bit tricky. This guide explains how to evolve Eevee into Umbreon in Pokémon Go.
The way you evolve Eevee into an Umbreon is to make sure you choose the Eevee you want to evolve and make it your friend. You can do this by clicking on your avatar profile and selecting your friend from the available collection. Once you have chosen your Eevee, the next step is to walk 10km with that Eevee. This step can be a little tricky to track precisely, but Eevee receives one heart for every 2km you walk with it, which you can receive up to three times a day. You can track it accurately for part of the first day, but you can also use egg incubators to keep track of it.
After walking 10km with that Eevee, the final step is to evolve it when it's night. Not only can it be dark in your area, but when you launch Pokémon Go, the environment around you must be dark. If not, you might miss your chance to turn that Eevee into Umbreon and it might become an Espeon instead.
If you'd rather avoid all of this the first time you evolve an Eevee into an Umbreon, we highly recommend using the name trick. You can change Eevee's name to Tamao, and when you evolve it, that Eevee will become an Umbreon. However, you can only use this trick once, so make it count.
When you evolve your Eevee into an Umbreon, you will be ready to go and can use it freely in the Great or Ultra League. When you do, be sure to teach him the best moveset to do the most damage.