What this is
12 August is an official 2026 financial-institution holiday marking Queen Mother Sirikit's birthday and Thailand's national Mother's Day. Light-blue decorations and family observances are common; banks close, while other organisations set their own hours.
Why go
- Official national and bank holiday
- Thailand's national Mother's Day
- Light-blue decorations and family tributes
Plan it well
- Plan banking and administration around the closure
- Expect busy domestic travel around the midweek holiday
Sources checked
Dates and planning claims were checked against the following current pages.
