Overworld swarms

Open the Town Map and look for a species icon and its location. When ordinary swarms are enabled, each open region has its own timer. An event lasts 20 minutes. After it closes, the next one in that region rolls in one to six hours. The map carries the news, so you can check it even if you missed the start.

What happens when I get there?

Look for four to six wandering Pokémon near one another. Stand beside one and interact to battle it. Each visitor gets their own set, with independent shiny rolls and IVs. A friend can hunt alongside you without taking your encounters. Returning during the same event restores your set.

Each Pokémon gives you one encounter. Catching it, knocking it out or running spends that encounter. Ordinary swarms use regular shiny odds and have no guaranteed perfect IVs. The red-glowing alpha belongs to the swarm inside a rift.

Swarm locations

The released catalog has 805 location and species pairings covering 393 species. For example, Pikachu can swarm on Kanto Route 1, Starly on Hoenn Route 101 and Sableye in Johto’s Dark Cave. Use a region and species together to narrow the table. This is a list of possible events. The Town Map shows current sightings.