Approximately 3,500 fireworks in the Mogami River's night sky, savoring the summer night with light reflected on the water

About this spot

The Nagai Water Festival Mogami River Fireworks Display climax begins at 7:30 PM on Saturday, August 8, 2026. Approximately 3,500 fireworks launched from upstream on the Mogami River spread across the full width of Yamagata's great river, their light shimmering on the water's surface as they color the night sky. The venue's riverside location has low surrounding buildings with an open view, making it possible to enjoy the grand fireworks unobstructed from the front—the greatest charm of this location. The night of the water festival, which carries on the tradition of Yamagata summer festivals, will become an unforgettable page of your journey, enveloped in the riverside breeze and fireworks sound together with local people. Watch the finale's successive bursts illuminate the river and sky simultaneously with your whole family.

Fireworks details

Tips

Always confirm whether the event will proceed in case of bad weather via the official announcement from Nagai City and Nagai Chamber of Commerce and Industry. After the display, roads around the venue and the direction of Nagai Station will be congested, so it's recommended to enjoy the moment a while longer in the riverbed before moving. Check the Flower Nagai Line return train times in advance. The ground is dark, so a small light is helpful.

Best time to visit

During the 7:30 PM onwards display time. Securing your viewing spot 30 minutes before the start provides peace of mind.

Access & map

Yamagata Prefecture, Nagai City - Mogami River Riverside Green Park (最上川河川緑地公園)