Summer Music Festival Held in Eastern Japan [2026]
From large-scale festivals to smaller ones, there are now countless exciting festivals being held.
Especially in summer, there are so many that it’s hard to keep up with all the information.
Here, we’ve compiled a list of summer music festivals taking place in eastern Japan.
- Kanto’s Popular Music Festivals [2026]: A Complete Guide to Spring, Summer, Autumn, and Winter Outdoor Events
- Autumn Music Festival held in Eastern Japan [2026]
- Summer Music Festival Schedule Summary [2026]
- List of Rock Festivals in Tohoku [2026]
- July Music Festivals [2026]: A roundup of summer festivals, outdoor rock fests, and other music events
- Spring Music Festival Schedule Overview [2026]
- Winter Music Festival in Eastern Japan [2026]
- Fukushima Music Festivals [2026] Outdoor Festivals and Events Summary
- Music festivals in eastern Japan held during Golden Week [2026]
- [Held in 2026] Recommended music festivals: A roundup of outdoor festivals and major rock festivals you’ll want to attend at least once
- Saitama Festival Calendar [2026]: A roundup of music festivals and outdoor events
- List of Eastern Japan summer festivals held during the summer vacation [2026]: rock festivals and outdoor music festivals
- [2026] Complete Guide to Summer Festivals in the Kanto Region: Music Festivals and Outdoor Festival Information
Tokyo Metropolis
TOKYO IDOL FESTIVALFri 7/31–Sun 8/2, Tokyo
It’s the world’s largest idol festival! Launched around the time the term “Idol Warring States Period” began to be heard, this festival draws over 1,000 idols and more than 70,000 attendees every year, making it an unmissable event for idol fans.
| Schedule | Fri, Jul 31–Sun, Aug 2, 2026 |
| place | Tokyo Metropolis, Koto City, Odaiba/Aomi surrounding area |
| Website | http://www.idolfes.com |
| SNS |
Chiba Prefecture
SATANIC CARNIVALSat 6/6 – Sun 6/7, Chiba Prefecture
This event is hosted by PIZZA OF DEATH, led by Ken Yokoyama, guitarist of the legendary three-piece punk band Hi-STANDARD. There’s no doubt it’ll feature a scorching lineup again this year. A must-check event for live music fans.
| Schedule | Sat, Jun 6–Sun, Jun 7, 2026 |
| place | Makuhari Messe International Exhibition Halls 9–11, Chiba City, Chiba Prefecture |
| Website | http://carnival.satanic.jp |
| SNS |
SUMMER SONICAug 14 (Fri)–16 (Sun), Chiba Prefecture
A flagship Japanese festival that has been held since 2000. Not only top domestic acts but also many renowned international artists perform, making it an event that draws global attention. A defining feature of Summer Sonic is that it’s an urban, touring-style festival. In addition to being easily accessible, the Tokyo and Osaka lineups swap over the two days. So whichever venue you attend, if you go for both days, you can see all the headliners.
| Schedule | Fri, Aug 14–Sun, Aug 16, 2026 |
| place | Chiba Prefecture, Chiba City, ZOZO Marine Stadium / Makuhari Messe |
| Website | http://www.summersonic.com |
| SNS |
Kanagawa Prefecture
FLOW THE FESTIVALSat 6/6 – Sun 6/7, Kanagawa Prefecture
| Schedule | Sat, Jun 6–Sun, Jun 7, 2026 |
| place | Pia Arena MM, Yokohama City, Kanagawa Prefecture |
| Website | https://www.flow-official.jp/cam/flowthefestival2024/ |
@JAM EXPOAug 29 (Sat) – 30 (Sun), Kanagawa Prefecture
@JAM EXPO, which began in 2014, is an event that has continued to be held even as the idol scene undergoes various changes. With the goal of widely introducing Japanese culture and further energizing the idol scene, it is carried out with passionate dedication. Aiming to be the best idol festival in Japan, it’s a must-see event for idol fans.
| Schedule | Saturday–Sunday, August 29–30, 2026 |
| place | Yokohama Arena, Yokohama City, Kanagawa Prefecture |
| SNS |


