Winter school break in Japan 2025 to 2026

When is the winter break from school in Japan in 2025 - 2026? There is no uniform answer to this, because, unlike some countries, Japan does not have a standardized winter holiday period.

However, by and large it is from Christmas day to January 7th. In other words, the last day of school in 2025 for many is December 24th and the first day in 2026 is January 8th. This is the winter break / holiday 3 of my 4   children will have. But one of them (public Junior High school) is expected to go to school club on Christmas day and other days during the holidays. Moreover, my senior high school student (private school) holiday is shorter. 

The dates of school holidays are not only different by prefecture, they are different

by municipality too. There is also a difference between public and private schools. What is the wimter break at your school and / or municipality?