EndedFestivals & FireworksYamanashi

Kawaguchiko Kojosai

Name: Kawaguchiko Kojosai
Start: 2026-08-05
End: 2026-08-05
Location: 大池公園から小曲トンネルの湖畔沿い

河口湖湖上祭

A spectacular fireworks display over Lake Kawaguchi, celebrating the opening of Mount Fuji. A historic summer tradition since 1977.

Official site

Yamanashi Festivals & FireworksEnded

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Schedule

August 5, 2026

Guide3 min read

Kawaguchiko Kojosai is a fireworks festival held to celebrate the 'Oyamabiraki' (the traditional opening of Mt. Fuji).

Highlights

Mt. FujiFireworksFood Trucks

Read the guide

About Kawaguchiko Kojosai

富士山を背景にした花火
キッチンカーによる飲食

Weather forecast

Thu

9/17

28°/19°

100%

Fri

9/18

27°/19°

16%

Sat

9/19

27°/20°

22%

Sun

9/20

24°/21°

73%

Mon

9/21

26°/21°

59%

Tue

9/22

27°/18°

20%

Wed

9/23

25°/19°

43%

See full forecast

Tips

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