Then there is the heat: Kanchanaburi and Pai average 37 degrees, Ayutthaya 36. In Chiang Mai, Pai and Chiang Rai there is often smoke from field fires in the air in March. If you want to escape the heat, head to the Gulf: Koh Samui, Koh Phangan and Koh Tao have 31 degrees and 81 millimetres.
All 20 destinations in March
Sorted by rain, driest first. The figures are monthly averages from 1981 to 2010; the temperature is the average daily high.
dry 9 places
Under 60 millimetres of rain a month.
Pai17 mm37 °C, 18 °C at nightMountain valley in the north-west
Chiang Mai18 mm35 °C, 20 °C at nightTemples and mountains in the north
Ayutthaya19 mm36 °C, 24 °C at nightOld royal capital on the river
Chiang Rai28 mm34 °C, 17 °C at nightWhite Temple and the Golden Triangle
Kanchanaburi29 mm37 °C, 24 °C at nightBridge on the River Kwai and waterfalls
Bangkok42 mm34 °C, 26 °C at nightTemples, the river and street food stalls
Isan42 mm35 °C, 23 °C at nightKhmer temples and the Mekong
Pattaya53 mm32 °C, 25 °C at nightBeach city close to Bangkok
Hua Hin54 mm32 °C, 25 °C at nightQuiet seaside resort on the Gulfchangeable 11 places
60 to 150 millimetres, expect showers.
Koh Lanta60 mm34 °C, 25 °C at nightQuiet island off Krabi
Phuket74 mm34 °C, 25 °C at nightBeaches, old town and islands
Koh Phangan81 mm31 °C, 26 °C at nightQuiet bays, loud full moon nights
Koh Samui81 mm31 °C, 26 °C at nightPalm island in the Gulf
Koh Tao81 mm31 °C, 26 °C at nightSmall island for divers
Krabi & Phi Phi98 mm34 °C, 23 °C at nightLimestone cliffs and islands
Khao Lak115 mm34 °C, 23 °C at nightLong beaches north of Phuket
Khao Sok115 mm34 °C, 23 °C at nightRainforest and Cheow Lan Lake
Koh Chang115 mm32 °C, 24 °C at nightGreen mountain island in the east
Koh Kood115 mm32 °C, 24 °C at nightQuiet island without a 7-Eleven
Koh Lipe122 mm35 °C, 24 °C at nightSmall island in the far southFor places without a weather station of their own, the figures of the nearest station apply: Ayutthaya (Suphan Buri station), Khao Lak and Khao Sok (Takua Pa station), Koh Chang and Koh Kood (Trat station), Koh Lipe (Satun station), Koh Phangan and Koh Tao (Koh Samui station) and Pai (Mae Hong Son station). More places and every month in detail are on the weather page.
Festivals and public holidays in March
There are no fixed dates in the calendar for March.
All dates of the year are in the festival calendar.
Frequently asked questions: Thailand in March
Where is it dry in Thailand in March?
9 of 20 places stay under 60 millimetres of rain in March: Pai, Chiang Mai, Ayutthaya, Chiang Rai, Kanchanaburi, Bangkok, Isan, Pattaya and Hua Hin. It is changeable, meaning between 60 and 150 millimetres, in Koh Lanta, Phuket, Koh Phangan, Koh Samui, Koh Tao, Krabi & Phi Phi, Khao Lak, Khao Sok, Koh Chang, Koh Kood and Koh Lipe.
How warm is it in Thailand in March?
By day the average ranges from 31 degrees in Koh Tao to 37 degrees in Pai. The coolest nights are in Chiang Rai, at an average of 17 degrees.
Is March too hot for Thailand?
Inland, often yes: Kanchanaburi and Pai reach an average of 37 degrees, Ayutthaya 36. By the sea it is more bearable, with 31 degrees on Koh Samui and 32 in Pattaya.
How the seasons are spread over the year is covered in the guide Best time to visit Thailand. All twelve months at a glance: the best time to visit overview. Also useful: the costs per day and the visa calculator.
Sources
- Thai Meteorological Department (TMD), climate averages 1981 to 2010, rounded
- The Nation: Bank of Thailand sets 18 bank holidays for 2027 (28 August 2026)
- Bank of Thailand: financial institutions’ holidays 2026
- Bank of Thailand Notification 37/2569: holidays 2027 (via tnews, 26 August 2026)
- Sanook: holidays 2027 (7 September 2026)
- myhora: Loy Krathong dates
- Full Moon Party Thailand: dates
- Straits Times: alcohol sales ban on Buddhist holidays
- The Nation: exemptions from the alcohol ban
- Surin Elephant Festival