When is Marine Day?

Marine Day in Japan gives thanks for the blessings of the sea and highlights the country's maritime identity. Summer outings, seaside trips, and holiday leisure are common around the date.

Marine Day is commonly associated with Seaside outings, Summer leisure, Family trips, Public holiday activities, Ocean-themed events. These customs shape how the holiday is recognized and give it a distinct character from one community to another.

This page tracks the next date for Marine Day and shows how the holiday appears across upcoming years. Visitors can use the countdown, date table, and related celebrations to plan ahead and compare similar observances.