Climate averages 1991–2020
Chiang Mai weather
in March.
A very hot, very dry month: the 2nd warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a very hot month in Chiang Mai: daytime highs average 34.3°C and nights cool to about 21.7°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 12 mm of rain on roughly 2 days, which makes March a very dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 02 min on an average March day.
The nearest other city in this atlas is Lampang (77 km away). In March its highs average 34.9°C, 0.5°C warmer than Chiang Mai, with 22 mm of rain.
Among the 46 cities listed in Thailand, Chiang Mai ranks joint 7th of 46 for the warmest March highs and 1st of 46 for the driest March (rainfall, lowest first). The mean March high of those 46 cities is 33.1°C; Chiang Mai is 1.2°C warmer than that mean.
From March to April, average highs rise by 1.5°C to 35.8°C, and monthly rainfall rises from 12 mm to 26 mm.
The annual picture
March in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Chiang Mai climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.1°C16.2°C | 16.2°C | 6.7 | 1.3 | 11.111 h |
| February | 31.3°C18.4°C | 18.4°C | 3.3 | 0.7 | 11.512 h |
| March, selected | 34.3°C21.7°C | 21.7°C | 12 | 2.1 | 12.012 h |
| April | 35.8°C24.5°C | 24.5°C | 26 | 4.3 | 12.613 h |
| May | 33.1°C24.6°C | 24.6°C | 99 | 13.1 | 13.013 h |
| June | 30.9°C24.1°C | 24.1°C | 120 | 18.3 | 13.213 h |
| July | 29.9°C23.8°C | 23.8°C | 175 | 21.9 | 13.113 h |
| August | 29.1°C23.4°C | 23.4°C | 236 | 25.0 | 12.813 h |
| September | 29.3°C22.9°C | 22.9°C | 227 | 23.4 | 12.312 h |
| October | 28.9°C21.5°C | 21.5°C | 114 | 15.7 | 11.712 h |
| November | 28.3°C18.8°C | 18.8°C | 21 | 4.0 | 11.311 h |
| December | 27.1°C16.0°C | 16.0°C | 9.1 | 1.2 | 11.011 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Lampang in MarchThailand · 77 kmHigh 34.9°C · Low 22.7°C · 22 mm rain
- Chiang Rai in MarchThailand · 153 kmHigh 33.0°C · Low 19.3°C · 42 mm rain
- Nyaunglebin in MarchMyanmar · 256 kmHigh 35.4°C · Low 21.2°C · 5.6 mm rain
- Taungoo in MarchMyanmar · 269 kmHigh 35.7°C · Low 21.9°C · 6.7 mm rain
- Thaton in MarchMyanmar · 269 kmHigh 34.1°C · Low 23.4°C · 16 mm rain
- Mawlamyine in MarchMyanmar · 293 kmHigh 33.5°C · Low 23.2°C · 23 mm rain
- Yawnghwe in MarchMyanmar · 299 kmHigh 30.0°C · Low 17.4°C · 7.6 mm rain
- Taunggyi in MarchMyanmar · 301 kmHigh 26.7°C · Low 13.6°C · 7.6 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Chiang Mai) is explained once on the Chiang Mai year overview and on the Sources, method and limits page.