What this is
10 December is an official 2026 financial-institution holiday commemorating Thailand's first constitution. Banks close; public institutions, malls, transport and visitor attractions publish their own schedules.
Why go
- Official national and bank holiday
- Commemorates the 1932 constitution
- A planning date more than a street festival
Plan it well
- Complete banking and administration before the holiday
- Check each attraction directly rather than assuming closure
Sources checked
Dates and planning claims were checked against the following current pages.