
Iwai's Winter Fireworks lands on Christmas Eve — December 24, 2026 — firing about 1,000 shells over the Iwai coast in Minamiboso, Chiba, from 7:00 p.m. The free beach show trades December's chill for intimacy: no paid seating, no festival stalls — plan dinner in the Boso town beforehand — and parking arranged along the coast. A rare chance to watch fireworks with sand underfoot and winter stars above.
Christmas Eve fireworks are a rarity in Japan; Iwai, on the Pacific coast of Chiba's Boso peninsula, claims the date. On December 24, 2026, about 1,000 shells launch from 7:00 p.m. over the Iwai coast, a quiet stretch of sand in Minamiboso. The event is free and minimal by design: no paid seating, no food stalls — dinner belongs to the town's restaurants beforehand — and parking arranged along the coastal road by the Minamiboso tourism association, the organizer. The winter air does the show favors: cold, clear skies sharpen color. Dress as if for a winter beach, because that is exactly what this is; the association's site carries the annual notes. The 7:00 p.m. launch keeps Christmas Eve dinner plans intact.
Christmas Eve on a Boso beach: 1,000 free shells under winter stars.