Month by month
Songkran, the Thai New Year water festival, takes over Bangkok, Chiang Mai and Phuket around April 13 to 15. Loy Krathong, with candles floated on rivers, usually falls in November, when Chiang Mai also releases lanterns for Yi Peng. In the north, smoke from crop burning often makes the air hazy from about February to April.
- JanuaryBestTypically 33°C by day, 21°C at night, rain on about 3 days a month
- FebruaryBestTypically 36°C by day, 23°C at night, rain on about 4 days a month
- MarchGo with a plan: HotTypically 38°C by day, 25°C at night, rain on about 7 days a month
- AprilGo with a plan: HotTypically 37°C by day, 27°C at night, rain on about 11 days a month
- MayGo with a plan: HotTypically 34°C by day, 26°C at night, rain on about 22 days a month
- JuneGo with a plan: RainyTypically 33°C by day, 25°C at night, rain on about 24 days a month
- JulyGo with a plan: RainyTypically 32°C by day, 25°C at night, rain on about 26 days a month
- AugustGo with a plan: RainyTypically 32°C by day, 25°C at night, rain on about 26 days a month
- SeptemberGo with a plan: RainyTypically 31°C by day, 25°C at night, rain on about 28 days a month
- OctoberGo with a plan: RainyTypically 31°C by day, 24°C at night, rain on about 23 days a month
- NovemberBestTypically 30°C by day, 22°C at night, rain on about 10 days a month
- DecemberBestTypically 30°C by day, 20°C at night, rain on about 2 days a month
Typical weather is for Bangkok: averages of NASA POWER daily data, 2016 to 2025, on a grid of about 50 km. Mountains and coasts can differ.
Plan the days
[Photo: Phuket]
Phuket in 3 daysPhuket Old Town, Wat Chalong, Big Buddha, Karon Viewpoint, Promthep Cape, Kata, Patong, Phang Nga Bay3 days, ThailandBalanced pace

Chiang Mai in 3 daysOld City temples, Night Bazaar, Doi Suthep, Wat Umong, Nimman, Wat Chiang Man, Warorot Market, Wat Sri Suphan3 days, ThailandBalanced pace

Bangkok in 3 daysGrand Palace, Wat Pho, Wat Arun, Golden Mount, Chinatown, Chatuchak, Jim Thompson House, Ayutthaya3 days, ThailandBalanced pace