Pokémon Day 2017

Pokémon Day in 2017 was the first Pokémon Day event in Pokémon GO.

Featured Pokémon
To celebrate Pokémon Day, any Pikachu that were encountered in the wild wore a festive party hat.

Any Pikachu captured during the event keeps its hat forever and every Raichu evolved from Pikachu with such hat have the same hat as well.