Sea Day in Japan

In 2026, Sea Day falls on Monday, 20 July 2026.

A person standing on a cliff near the ocean
Photo by Jivan Garcha on UnsplashUpdated 13 Jul 2026

About Sea Day

Sea Day, or Umi no Hi, is a national holiday in Japan dedicated to expressing gratitude for the ocean's bounty and the prosperity it brings to the island nation. Originally established to commemorate the Emperor Meiji's return from a sea voyage, it now encourages environmental awareness and beach activities. Citizens observe the day by visiting coastal areas and participating in maritime festivals.

Sea Day dates in Japan

Observance dates for Sea Day across a 10-year window (2023-2031).

17 Jul 2023

Monday · Sea Day

2023

15 Jul 2024

Monday · Sea Day

2024

21 Jul 2025

Monday · Sea Day

2025

20 Jul 2026

Monday · Sea Day

2026

19 Jul 2027

Monday · Sea Day

2027

17 Jul 2028

Monday · Sea Day

2028

16 Jul 2029

Monday · Sea Day

2029

15 Jul 2030

Monday · Sea Day

2030

21 Jul 2031

Monday · Sea Day

2031

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