Here's the complete guide to Tokyo's summer festivals and fireworks in 2026. Tokyo’s matsuri (traditional festivals) and hanabi (fireworks) season technically starts each year with the Adachi Fireworks Festival, held in late May as an early-bird show along the Arakawa River. Around this time, the city is filled with paper lanterns, portable shrines, dance parades, river-side fireworks shows and people wearing yukata. Mitama MatsuriDate: July 13–16, 6:00–21:30July 13–16, 6:00–21:30 Location: Yasukuni Shrine, Kudanshita, Chiyoda-kuYasukuni Shrine, Kudanshita, Chiyoda-ku What it is: Tokyo’s grandest Obon-season event. It’s the oldest and most famous fireworks display in the city, with Tokyo Skytree as a backdrop, drawing close to a million spectators.