Mountain DayReview each holiday with local names and official notes.DateTue, August 11, 2026LocationJapanStatusScheduledPart of long weekendSat, Aug 8 – Tue, Aug 114-day breakDescriptionAppreciation for mountainsDates by year2024Mon, August 12, 20242025Mon, August 11, 2025← Previous holiday: Marine DayNext holiday: Respect for the Aged Day →