Thailand in March: where is it warmest?
In March, Chiang Mai is the warmest place with 34 °C by day, Ko Pha-ngan the coolest with 25 °C. 10 of 12 destinations have good holiday weather.
All destinations in March, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
| Place | Score | Air | Sea | Sun | Rain days |
|---|---|---|---|---|---|
| Chiang Mai | 52 | 34° | – | 9 h | 2 |
| Bangkok | 49 | 34° | – | 8 h | 6 |
| Hua Hin | 82 | 33° | 29° | 8 h | 7 |
| Ao Nang, Krabi | 78 | 32° | 29° | 7 h | 13 |
| Pattaya | 89 | 31° | 29° | 8 h | 7 |
| Koh Lanta | 85 | 31° | 30° | 7 h | 11 |
| Khao Lak | 79 | 31° | 29° | 8 h | 14 |
| Koh Samui | 90 | 29° | 29° | 8 h | 9 |
| Patong, Phuket | 81 | 29° | 29° | 8 h | 14 |
| Phuket | 81 | 29° | 29° | 7 h | 14 |
| Koh Tao | 92 | 28° | 29° | 8 h | 8 |
| Ko Pha-ngan | 91 | 25° | 29° | 8 h | 8 |
Thailand in March: quick answers
Thailand in March: where is it warmest?
The warmest places in March are Chiang Mai (34 °C), Bangkok (34 °C) and Hua Hin (33 °C).
Thailand in March: where is the sea warmest?
The sea is warmest at Koh Lanta (30 °C), Hua Hin (29 °C) and Ao Nang, Krabi (29 °C).
Thailand in March: where is the weather best?
The best holiday weather in March – warm, sunny and dry – is in Koh Tao, Ko Pha-ngan and Koh Samui.
Thailand month by month
Thailand: weather & best time to visit
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences