Chiba Festival Calendar [2026]: A Roundup of Music Festivals and Outdoor Events

KashiFes ~KASHIWA PICNIC FES 2026~ is a music event held at the outdoor Smile Park at Seven Park Ario Kashiwa in Kashiwa City, Chiba Prefecture. The venue is an outdoor space of a shopping mall, featuring a program centered on mini live performances and special meet-and-greet events by popular artist groups. Over two days during Golden Week 2026, May 2 and 3, SHOW-WA & MATSURI, Lienel, and ONE N’ ONLY will appear on different days.

JAPAN JAM is a spring rock festival organized by rockin’on japan that brightens Chiba during Golden Week. The venue is Chiba City Soga Sports Park overlooking Tokyo Bay, featuring a spacious layout spread across multiple stages. Centered on Japanese rock, a wide range of artists—from the new generation to seasoned heavyweights—gather to deliver diverse live performances in an open-air setting. In 2026, it will be held over four days from May 2 to May 5.

The Nagareyama Green Festival is a citizen-participation event themed around greenery and flowers, organized by Nagareyama City in Chiba Prefecture. At the venue, Morinomachi Plaza (Nagareyama-Otakanomori Station South Exit), visitors are welcomed by a large floral picture composed of about 3,000 flower and vegetable seedlings, serving as a photo spot. In 2026, as a special edition commemorating the 60th anniversary of Nagareyama’s municipal establishment, special programs will include a city-building tour walking with the mayor and a floral picture project created by children. The event will be held on May 4, 2026.

KCON JAPAN is a global festival hosted by CJ ENM where you can experience K-pop and Korean lifestyle. Launched in the United States in 2012, it has been held in various locations around the world. The Japan edition will take place at Makuhari Messe, one of the world’s leading exhibition centers, featuring not only concerts but also an experiential area bringing together K-beauty, K-food, and K-content. It will be held in May 2026 as a three-day event where you can fully immerse yourself in K-pop and Korean culture.

“Lalaport Kashiwanoha Music Festa 2026” is a music event held at the Center Plaza on the 2nd floor of the main building of Lalaport Kashiwanoha, a commercial complex in Kashiwa City, Chiba Prefecture. Groups active in Kashiwa and the Tokatsu area will gather to present performances centered on wind ensemble music. The official call invites people to “experience the joy of music together,” making it an event where you can feel the region’s musical culture up close. Multiple dates are scheduled on weekends and holidays from May to November 2026.

The Choshi Hawaiian Festival is a celebration of hula held on a special stage at Choshi Marina Seaside Park, overlooking Byobugaura and the Pacific Ocean. Since its launch in 2013, it has drawn over 6,000 attendees each time. The venue comes alive with dazzling performances by numerous hula dancers from within and outside the prefecture, accompanied by live Hawaiian music. Under the theme “Two days when Choshi becomes Hawaii,” a Hawaiian goods market and a gourmet fair are held simultaneously. The festival will take place in May 2026.

The Inzai Machinaka Music Festival is a community-driven music event held across 12 venues—including shopping malls and parks—around Inzai-Makinohara Station in Inzai City, Chiba Prefecture. Launched in 2022, it celebrates its fifth edition in 2026. Under the banner “Let’s sow the seeds of music together!”, a wide range of genres—folk, rock, Japanese taiko drumming, choral music, gospel, and even piano recitals—resonate throughout the city. It’s a locally rooted day where amateurs and professionals gather without barriers.