Marine Day 2025 has already passed
You are viewing a historical date page for Marine Day 2025. Use the next available year or the main holiday overview for the latest countdown.

How many days until Marine Day
See how many days remain until the next Marine Day and track the live countdown.
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About Marine Day
Marine Day is observed in Japan as a holiday or public observance. It is observed on the 3rd Monday of July each year, so the exact date changes from year to year.
People often mark Marine Day with family gatherings, public events, and local traditions, depending on local custom and how the holiday is observed. This page helps you check the next Marine Day date and see how many days remain until the holiday.
Marine Day 2025 Date Information
Marine Day 2025 falls on Monday, July 21, 2025. This section highlights the exact date, weekday, and where the holiday lands within the year.
Full Date
Monday, July 21, 2025
Day of Year
Day 202
Days Left in Year
163 days
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When Is Marine Day 2025?
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Frequently Asked Questions about Marine Day
Marine Day 2025 was 476 days ago on Monday, July 21, 2025.





