Pokemon Go is launching its latest season, Twilight Trails, in September 2026 with a packed event schedule. Players can anticipate the return of several Mega-Evolved Pokemon during the Mega Ascension event, leading into the Go Fest Mega Finale. The month will also see the introduction of the dark-type Pokemon Maschiff and Mabosstiff, a Super Mega Raid Day featuring a new Mega-Evolved Pokemon, and a Community Day Classic centered around the fan-favorite Gible.

September Raid Schedule

The month begins with the departure of the Regi trio on September 8. Following this, Zacian and Zamazenta will return to five-star Raids from September 9-15 and September 16-22, respectively. The Ultra Beasts Xurkitree, Pheromosa, and Buzzwole will then appear in their designated regions from September 23-29, with Xerneas concluding the month's legendary raids from September 30 to October 6. Mega Raids will feature a rotation of popular Pokemon, including Mega Beedrill, Mega Houndoom, Mega Venusaur, Mega Malamar, and Mega Victreebel. Shadow Incarnate Forme Thundurus will be available in Shadow Raids throughout September. Max Battles will cycle through various Dynamax Pokemon, including Eevee, Ralts, Rhyhorn, Articuno, Zapdos, Moltres, and Sobble.

Spotlight Hours and Bonuses

Weekly Spotlight Hour events will continue every Thursday from 6-7 PM local time, with an additional bonus Spotlight Hour on Sunday, September 13. These events offer increased spawns of a featured Pokemon and a special bonus. On September 10, players can earn double transfer candy with Weedle, Kakuna, and Beedrill. September 13 will feature Houndour and Houndoom with double transfer candy. Details for the September 17 Spotlight Hour are pending, but it will offer double catch Stardust. The month concludes with Rattata on September 24, offering double evolution XP and an increased chance to encounter XXS Rattata.

Mega Ascension and Go Fest Finale

The Mega Ascension event runs from August 31 to September 4, offering daily chances to battle and earn Mega Energy from various Mega-Evolved Raid bosses. Pokemon capable of Mega Evolution will also spawn more frequently in the wild. A special branching Timed Research story, Go Pass: Mega Finale, will be available, allowing players to choose between Chespin, Fennekin, or Froakie for rewards and Mega Energy. The Go Fest Mega Finale takes place on September 5-6, featuring rotating habitats, special bonuses like an unlimited Remote Raid Pass limit, and a CP boost for all Mega-Evolved Pokemon. Go Pass Deluxe holders will receive additional rewards, including bonus candy and XP from Mega Raids, and increased chances for shiny encounters.

Mega Squads and New Pokemon Debut

From September 8-14, the Mega Squads event will introduce Maschiff and its evolution Mabosstiff to the game. Maschiff can be encountered through Field Research tasks or by hatching 5 km eggs, and evolves into Mabosstiff using 50 Maschiff candies. Shiny Flamigo will also make its debut during this event, available through Field Research or egg hatches. Other Pokemon such as Pidgey, Rookidee, and Carvanha will appear more frequently, while Mega Beedrill and Mega Houndoom return to Raids.

Gible Community Day Classic

On September 12, Pokemon Go will host a Gible Community Day Classic from 2-5 PM local time. During this period, Gible will appear more frequently in the wild, increasing the chances of finding a shiny variant or one with a special background. Evolving Gabite into Garchomp by 9 PM local time will grant it the Charged Attack Earth Power. The event includes an event-themed Collection Challenge, Field Research tasks, triple Stardust for catching Pokemon, and extended durations for Incense and Lure Modules.

Mystery Event and Super Mega Raid Day

A Mystery Event is scheduled for September 16-22, with further details to be announced. On September 19, a Super Mega Raid Day will introduce a new Mega-Evolved Pokemon. The month concludes with a Phantump Catch Mastery event on September 26 from 10 AM-8 PM local time, offering encounters with Phantump through Field and Timed Research, alongside increased spawns of Cherubi and Drifloon. Catching Pokemon with a Nice Throw or better during this event will yield double XP and increased candy.

Harvest Festival

Pokemon Go will celebrate the start of autumn with the Harvest Festival event, running from September 29 to October 5.