All nine countries

Thailand Public Holidays 2026

Bangkok, a northern hill country, and two coasts that do not share a weather pattern. Nowhere in Asia is easier to travel cheaply, and the difference between the right month and the wrong one is mostly about rain.

Best Nov – FebHottest Mar – MayRain Jun – OctGulf islands differ

Planning a trip to Thailand?

The best time to visit Thailand

Three seasons, and one big caveat: the Gulf islands run on their own calendar and peak for rain in November, when the rest of the country is at its best.

November – February

Cool dry season

Best for First-timers and anyone who hates humidity

The easy window. Rare rain, temperatures in the high twenties, and everything from Bangkok street food to the Andaman islands working properly. It is also peak season, so book the islands and the Chiang Mai guesthouses well ahead.

BangkokChiang MaiKrabi & RailayPhuket
Cool dry season in Thailand
March – May

Hot season and Songkran

Best for Festival-goers and heat-tolerant divers

It gets genuinely hot, up past 35C inland, and then the country throws water at itself for three days in mid April for Songkran. Prices soften either side of it, and the diving on both coasts is at its clearest.

Chiang MaiBangkokSimilan IslandsKoh Lanta
Hot season and Songkran in Thailand
June – October

Green season

Best for Budget travellers and photographers

Rain comes in short heavy bursts rather than all day, the north turns properly green, and prices drop hard. This is also when the Gulf islands are at their best, which is the opposite of the rest of the country.

Koh SamuiKoh TaoChiang MaiPai
Green season in Thailand

Full calendar

Full list of Thailand public holidays, Jul – Dec 2026

Public holidays, plus the festivals worth planning around.

July

  • 28Tue King Vajiralongkorn's Birthday
  • 29Wed Asarnha Bucha Day
  • 30Thu Khao Phansa (Buddhist Lent)

August

  • 12Wed Queen Mother's Birthday / Mother's Day

September

Nothing this month

October

  • 13Tue King Bhumibol Memorial Day
  • 23Fri Chulalongkorn Day

November

  • 25Wed Loy Krathong / Yi Peng (Chiang Mai 24–26)

December

  • 5Sat King Bhumibol's Birthday / National Day
  • 7Mon National Day (observed)
  • 10Thu Constitution Day
  • 31Thu New Year's Eve

In a long weekendPublic holidayFestival

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