Day Date Month Holiday Friday 1 Jan New Year's Day Friday 26 Feb Makha Bucha Day Tuesday 6 Apr Chakri Memorial Day Tuesday 13 Apr Songkran Festival Wednesday 14 Apr Songkran Festival Thursday 15 Apr Songkran Festival Tuesday 4 May Coronation Day Wednesday 26 May Wisakha Bucha Day Thursday 3 Jun H.M. Queen Suthida Bajrasudhabimalalakshana?s Birthday Monday 26 Jul Substitution for Asarnha Bucha Day (Saturday 24th July 2021) Wednesday 28 Jul H.M. King Maha Vajiralongkorn Phra Vajiraklaochaoyuhua?s Birthday Thursday 12 Aug H.M. Queen Sirikit The Queen Mother?s Birthday / Mother?s Day Wednesday 13 Oct H.M. King Bhumibol Adulyadej The Great Memorial Day Monday 25 Oct Substitution for Chulalongkorn Day (Saturday 23rd October 2021) Monday 6 Dec Substitution for H.M. King Bhumibol Adulyadej The Great?s Birthday
National Day / Father?s Day (Sunday 5th December 2021)
Friday 10 Dec Constitution Day Friday 31 Dec New Year's Eve Remark: Subject to Change According to the Cabinet.