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

Music Festival Master / Editor-in-ChiefKeisuke Hane
Editor-in-chief of RAG MUSIC and in charge of music festivals. When I attended my first music festival as a freshman in college, I was captivated by its charm—“I can’t believe there’s a place this free and this fun.” I share information about wonderful music festivals every day to help grow the community of festival fans.

I’ve put together a list of music events happening in September, including outdoor rock festivals, circuit-type festivals, and jazz street events.

Grateful for the chance to encounter amazing music again this year!

Past events

TENDO JONDANA FESTIVALSun, 9/28 Yamagata Prefecture

http://www.city.tendo.yamagata.jp

Schedule	Sunday, September 28, 2025
place	Tendo Onsen Wakuwaku Land Outdoor Stage, Tendo City, Yamagata Prefecture
Website	https://www.city.tendo.yamagata.jp/tourism/kanko/event-summer_jondana.html
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UME LOCK FESTIVALSun, 9/28, Tokyo-to

umelock.com

Schedule	Sunday, September 28, 2025
place	S&D Tamagu Center, Ome City, Tokyo
Website	https://umelock.com/
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Nuts PartySunday, 9/28, Chiba Prefecture

Nuts Party is a festival held at Chiba Port Park. While feeling the sea breeze, you can enjoy not only music but also dance and art, making it an event the whole family can enjoy. On the day, you can expect not only food stalls from all over Japan, but also yoga schools, apparel vendors, and various hands-on experiences. It’s not just a music festival—it’s also an event that proposes a lifestyle. Discounted advance tickets are available, so if you’re interested, we recommend checking it out early.