In 2027, Marine Day falls on a Monday, giving many a long weekend.
About Marine Day
Marine Day (Umi no Hi) is a Japanese national holiday held on the third Monday of July. Established as a public holiday in 1996, it expresses gratitude for the bounty of the ocean and reflects on the sea's importance to an island nation. Falling in high summer, it also marks a popular start to the beach and holiday season across the country.
On Marine Day many families head to the coast, and beaches, aquariums and seaside resorts see their busiest crowds of the season. Coastal towns hold festivals with fireworks, boat parades and seafood stalls, while ports may open naval or research vessels to visitors. Some communities organise beach clean-ups and ocean-education events. Because it creates a three-day weekend, it is also a popular time for short domestic trips.
Marine Day · 2025–2030
Frequently asked questions
When is Marine Day 2027 in Japan?
Monday, Monday, 19 July 2027.
Is Marine Day a public holiday in Japan?
Marine Day — Public holiday (Japan).