September Music Festivals [2025–2026]: A roundup of autumn festivals, outdoor rock fests, and other music events

Nerima JAZZ Festival. At this festival, multiple stages are set up within Hikarigaoka Park, the venue, and about 40 bands perform in total. We hope you’ll go home feeling not only the music but also the charm of Nerima. True to its slogan, “Anything goes as long as it’s the best,” the festival features an exceptionally diverse lineup of outstanding artists.

The Gunma Rock Festival, which was held for three years starting in 2011, has been reborn as “Yamabito Ongakusai.” The central driving force behind the event is G-FREAK FACTORY, and the title “Yamabito” (mountain folk) was chosen to evoke Gunma Prefecture’s mountains: Mt. Akagi, Mt. Haruna, and Mt. Myogi.