August 12 is a public holiday in Thailand. The Cabinet confirmed earlier this year that the date remains a national holiday even after the passing of Queen Sirikit in October 2025, now framed as a day of remembrance for the late queen alongside its established role as National Mother’s Day. If you are in Thailand on Wednesday, August 12, expect a quieter-than-usual day with widespread closures.
What to Expect on August 12
Government offices, banks, post offices, and most schools will be closed. Major shopping malls in Bangkok and resort towns typically stay open, though hours may be reduced. Smaller local shops and markets operate at the owner’s discretion — some close for the morning, others shut entirely.
Public transport runs on a modified schedule. BTS Skytrain and MRT in Bangkok operate normally but expect heavier passenger loads as many residents head home or take day trips. Intercity trains and buses run full services, though they fill quickly around long-weekend travel.
Ceremonies and Remembrance Events
Cities across the country observe the day with merit-making ceremonies, candle-lighting events, and Buddhist rites. In Bangkok, Sanam Luang often hosts official ceremonies. In Chiang Mai and other regional cities, provincial halls organise early-morning merit-making that draws large crowds from around 7:00–9:00 a.m.
Travelers interested in attending should arrive early and dress modestly — covered shoulders and knees are expected at any official ceremony.
Impact on Tourist Areas
Attractions managed by the government — including several national museums and historic sites — may close or operate on shortened hours. Check opening times directly before visiting. Most privately operated tourist sites, including temples that charge admission, remain open.
ATMs are fully available throughout the holiday. Currency exchange counters in malls and airports operate as usual.
Planning Around the Holiday
If you need to visit a bank, immigration office, or government counter, plan to do so before or after August 12. The day falls on a Wednesday, so it does not create a long weekend for most workers — expect less domestic travel pressure than a Friday or Monday holiday would generate.
For those based in Bangkok, it is a good opportunity to explore the city’s temples and riverside areas, which tend to feel calmer than usual as office workers stay home. Practical tips on navigating Thai public transport and holiday schedules are covered in our practical travel guide.