Confirmed datePublic HolidaySeasonal

Mountain Day (Yama no Hi)

WhenAugust 11, 2026
WhereNationwide
ScopeAcross Japan
PriceFree / observed nationwide
a view of a city with tall buildings2026-08Across Japan
Photo: Rebecca Clarke / Unsplash

The shape of it

About

Japan's newest national holiday, introduced in 2016 to appreciate the country's mountains. Fixed in mid-August, it sits right before the Obon travel rush, encouraging hiking and outdoor trips.

Highlights

  • Japan's most recent national holiday (since 2016), fixed on August 11
  • Marks the start of many people's Obon travel break
  • Popular for hiking and getaways from the summer heat of the city

Plan it well

  1. Banks and offices close; it often merges into the Obon week, so trains and highways get extremely busy.
  2. Book any travel out of Tokyo well ahead — this is the leading edge of a peak travel season.
  3. Day-trip mountain areas near Tokyo (e.g. Mt Takao) fill up; start early.

Sources