Niantic has announced the Season of Discovery, which will feature both new Pokémon never-before-seen in Pokémon GO, and new things about Pokémon we're familiar with, will be coming to Pokémon GO this June. The season begins on June 1, 2021, at 10:00 a.m. local time and will last to September 1, 2021, at 10:00 a.m. local time.
As the seasons change, different Pokémon will be appearing more frequently in the wild in different areas. In cities, Pokémon such as Alolan Rattata, Magnemite, and Porygon will be appearing, while in far-off forests, Bellsprout, Doduo, Skorupi, and more will be appearing. The mountains are seeing shifts in Pokémon as well, with Rhyhorn, Nosepass, Dwebble, and more appearing, while Magikarp, Marill, Wailmer, and more will be appearing near bodies of water.
Trainers living in different hemispheres can encounter different Pokémon. In the northern hemisphere, Pokémon like Alolan Diglett, Staryu, Treecko, Torchic, Mudkip, Barboach, and Petilil will be appearing more frequently in the wild. Deerling will be appearing in its Summer Form. Pokémon such as Sableye, Scyther, and Combee may occasionally appear in the wild. In the southern hemisphere, Pokémon such as Alolan Sandshrew, Alolan Vulpix, Shellder, Turtwig, Chimchar, Piplup, and more will be appearing more frequently in the wild. Deerling will be appearing in its Winter Form. Pokémon such as Lickitung, Chimecho, and Cubchoo may occasionally appear in the wild.
Some different Pokémon will be hatching from Eggs:
New tasks and new rewards will be available after completing different Field Research when you spin PokéStops. There will also be monthly changes to select Field Research tasks.
Players will receive a free Remote Raid Pass from Research Breakthrough rewards throughout June. Throughout the entire Season, players will also earn twice the XP from Research Breakthroughs as well.