[2025–2026] Complete Kanto Summer Festival Guide: Music and Outdoor Festival Information

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.

The outdoor festival season that colors the Kanto summer has arrived.

Under a wide-open blue sky, a special space woven by music and nature sets the stage for moving live performances.

From venues you can enjoy on a day trip from the city center to camp-in festivals where you can stay overnight, a wide variety of events are lined up to meet music fans’ expectations.

Powerful performances by top-tier artists from Japan and abroad, together with encounters with fresh new talent, will make your summer memories shine.

Past events

[8/10] Saucy Dog, sumika, 10-FEET, Tokyo Ska Paradise Orchestra, 04 Limited Sazabys, Macaroni Empitsu, Maximum the Hormone, Ryokuoushoku Shakai, [8/11] Aina the End, ano, indigo la End, UVERworld, BE:FIRST, Eikichi Yazawa, WANIMA, WurtSSun 8/10 – Mon 8/11 Saitama Prefecture

Schedule	Sun, Aug 10, 2025 – Mon, Aug 11, 2025
place	Saitama Prefecture, Saitama City, Saitama Super Arena
Website	https://cannonball-live.jp/
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ODAWARA SUMMER FESTIVALSunday, August 10, Kanagawa Prefecture

odawarasummer-fes.com

Schedule	Sun, Aug 10, 2025
place	Kanagawa Prefecture, Odawara City, Odawara Arena
Website	https://odawarasummer-fes.com/
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ATSUGI Hi! Thunder Rock FestivalMon, Aug 11 – Kanagawa Prefecture

atsugi-bunka.jp

Schedule	Monday, August 11, 2025
place	Kanagawa Prefecture, Atsugi City, Atsugi City Cultural Hall, Main Hall
Website	https://atsugi-bunka.jp/topics/2025/001501/
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Kotobuki-cho Free ConcertWed, Aug 13 — Kanagawa Prefecture

kotobukifree.jimdofree.com

Schedule	Wednesday, August 13, 2025
place	Kanagawa Prefecture, Yokohama City, Kotobuki-cho Health and Welfare Exchange Center Plaza
Website	https://kotobukifree.jimdofree.com/
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SONICMANIAFriday, Aug 15 — Chiba Prefecture

Sonicmania is an all-night event held the night before the main Summer Sonic each year as a pre-festival. However, its momentum has grown into something far beyond a mere pre-party. With a lineup that fuses rock and dance, it offers new experiences to each community.