Marine DayReview each holiday with local names and official notes.DateMon, July 20, 2026LocationJapanStatusScheduledPart of long weekendSat, Jul 18 – Mon, Jul 203-day breakDescriptionGratitude for the oceanDates by year2024Mon, July 15, 20242025Mon, July 21, 2025← Previous holiday: Children's DayNext holiday: Mountain Day →