| Date | Holiday | Type |
|---|---|---|
| 2026-01-01 | New Year's Day | National |
| 2026-01-02 | Bridge Public Holiday after New Year's Day | Substitute |
| 2026-01-10 | National Children's Day | National |
| 2026-03-03 | Makha Bucha | National |
| 2026-04-06 | Chakri Memorial Day | National |
| 2026-04-13 | Songkran Festival | National |
| 2026-04-14 | Songkran Festival | National |
| 2026-04-15 | Songkran Festival | National |
| 2026-05-01 | National Labor Day | National |
| 2026-05-04 | Coronation Day | National |
| 2026-05-31 | Visakha Bucha | National |
| 2026-06-01 | Visakha Bucha (in lieu) | Substitute |
| 2026-06-03 | HM Queen Suthida's Birthday | National |
| 2026-07-28 | HM King Maha Vajiralongkorn's Birthday | National |
| 2026-07-29 | Asarnha Bucha | National |
| 2026-07-30 | Buddhist Lent Day | National |
| 2026-08-12 | HM Queen Sirikit The Queen Mother's Birthday; National Mother's Day | National |
| 2026-10-13 | HM King Bhumibol Adulyadej Memorial Day | National |
| 2026-10-23 | HM King Chulalongkorn Memorial Day | National |
| 2026-12-05 | HM King Bhumibol Adulyadej the Great's Birthday; National Day; National Father's Day | National |
| 2026-12-07 | HM King Bhumibol Adulyadej the Great's Birthday (in lieu); National Day (in lieu); National Father's Day (in lieu) | Substitute |
| 2026-12-10 | Constitution Day | National |
| 2026-12-31 | New Year's Eve | National |
About these holidays in Thailand (2026)
Our Thailand public holidays guide explains the background of each holiday and how the dates are set.
New Year's Day
New Year's Day falls on 1 January and opens the Gregorian calendar year. Most countries mark it with a public holiday, and celebrations usually begin the night before with countdowns, fireworks and gatherings. The date was fixed in its current position by Julius Caesar's calendar reform, and later preserved by the Gregorian reform of 1582. traditions vary widely, from first-footing in Scotland to writing resolutions for the months ahead.
Constitution Day
Constitution Day commemorates the adoption or signing of a country's constitution. The date varies by nation: Norway marks 17 May, Denmark 5 June, Poland 3 May, Spain 6 December, India 26 January and Japan 3 May. It is usually a public holiday marked by official ceremonies, parades and educational events about citizenship. In several countries it is treated as a celebration of national identity as much as of the legal document itself.