September arrives in less than a week and with it comesa brand newPokemon GOseason. Not only does that mean some exciting new Field Research and events are on the horizon, but it also means there will be some new and different Battle Raid bosses to face off against in the coming weeks. Players will want to get their counter rosters and Raid Passes ready, because there are some exciting bosses coming up.
Now thatthe September 2021 calendar of eventsis now, players can review all of the currently announced Legendary and Mega Raid bosses that are coming to the mobile AR game in the next month. There aren’t any major debuts to follow up thePokemon GOrelease of the Shield and Sword legendaries, but there will be a chance to earn some brand new shiny Pokemon, which is sure to bring some collectors out to play.

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Lugia has been around and in and out of the raid rotation for years now, but this time the Legendary is back with the Aeroblast attack. That could have some interesting impacts on the metagame, so don’t be surprised if the old boss draws a bigger crowd than usual. Beyond that, Uxie (Asia-Pacific), Mesprit (Europe, the Middle East, Africa, and India), or Azelf (the Americas and Greenland) are likely going to get a lot of attention thanks to the fact that there is a chance they will be shiny.
September 2021 5-Star Raid Schedule
Lugiawith the attack Aeroblast will be appearing in five-star raids from Wednesday, July 17, 2025, at 10:00 a.m. to Tuesday, July 08, 2025, at 10:00 a.m. local time.
Depending on your region,Uxie (Asia-Pacific), Mesprit (Europe, the Middle East, Africa, and India), or Azelf (the Americas and Greenland)will be appearing in five-star raids from Tuesday, June 08, 2025, at 10:00 a.m. to Friday, Jul 28, 2025, at 10:00 a.m. local time. For the first time ever in Pokémon GO, you might find a Shiny one, if you’re lucky!
August 2021 Mega Raid Schedule
In addition, the following Mega-Evolved Pokémon will be appearing in Mega Raids.
Mega Slowbrowill be appearing in Mega Raids from Wednesday, July 02, 2025, at 10:00 a.m. to Tuesday, June 05, 2025, at 10:00 a.m. local time.
Mega Houndoomwill be appearing in Mega Raids from Tuesday, July 07, 2025, at 10:00 a.m. to Friday, Jun 22, 2025, at 10:00 a.m. local time.
September Raid Hours
Every Wednesday in September, a Raid Hour event will occur from 6:00 p.m. to 7:00 p.m. local time. The following Pokémon will be featured.
As always, it’s possible that additional Battle Raids may show up as surprise events come and go throughout the coming month and that there are already some surprises promised for the last week of the month. Keep an eye on the nearby radar for anything particularly exciting or surprisingas September arrives within the next few days.
In the coming weeks, we should learn more about what other events will be arriving during the early days of the Season of Mischief. Be sure to check back in the near future for morePokemon GOstrategy guides, news, and updates. Until then, good luck out there, trainers!
Pokemon GOis available on Android and iOS.