Mountain Day Dates. When is Mountain Day in Japan?

Mountain Day is a national holiday in Japan. In the table below, you will find when Mountain Day is official marked and celebrated in Japan over a span of 15 years. All the information display below is also available via our API as well as downloadable as a csv. Signup here to get started.

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Year Day of the Week Date Name
2016
 Thursday August 11 Mountain Day
2017
 Friday August 11 Mountain Day
2018
 Saturday August 11 Mountain Day
2019
 Monday August 12 Day off for Mountain Day
2020
 Monday August 10 Mountain Day
2021
 Monday August 9 Day off for Mountain Day
2022
 Thursday August 11 Mountain Day
2023
 Friday August 11 Mountain Day
2024
 Monday August 12 Day off for Mountain Day
2025
 Monday August 11 Mountain Day

These dates may be modified as official changes are announced, so please check back regularly for updates or sign up for our newsletter to receive regular updates. All updates are automatically added to our API as well.

Our team of holiday editors are continuously monitoring for changes from government agencies and local authorities to this data to ensure we're providing the most accurate information possible. If you happen to notice an error, please get in touch.