Climate averages 1991–2020
Siem Reap weather
in March.
A very hot, moderately wet 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 Siem Reap: daytime highs average 34.1°C and nights cool to about 25.4°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 52 mm of rain on roughly 8 days, which makes March a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 03 min on an average March day.
The nearest other city in this atlas is Battambang (77 km away). In March its highs average 35.3°C, 1.2°C warmer than Siem Reap, with 47 mm of rain.
Among the 8 cities listed in Cambodia, Siem Reap ranks 6th of 8 for the warmest March highs and 7th of 8 for the driest March (rainfall, lowest first). The mean March high of those 8 cities is 34.0°C; Siem Reap is level with that mean.
From March to April, average highs rise by 0.1°C to 34.2°C, and monthly rainfall rises from 52 mm to 94 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
Siem Reap climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.3°C21.9°C | 21.9°C | 9.0 | 1.9 | 11.411 h |
| February | 32.8°C23.5°C | 23.5°C | 13 | 2.6 | 11.712 h |
| March, selected | 34.1°C25.4°C | 25.4°C | 52 | 7.8 | 12.012 h |
| April | 34.2°C26.1°C | 26.1°C | 94 | 13.4 | 12.412 h |
| May | 33.0°C26.1°C | 26.1°C | 148 | 21.4 | 12.713 h |
| June | 32.0°C25.7°C | 25.7°C | 131 | 20.7 | 12.913 h |
| July | 31.3°C25.3°C | 25.3°C | 135 | 22.0 | 12.813 h |
| August | 31.0°C25.1°C | 25.1°C | 162 | 24.3 | 12.613 h |
| September | 30.3°C24.5°C | 24.5°C | 244 | 25.9 | 12.212 h |
| October | 30.0°C23.8°C | 23.8°C | 224 | 23.2 | 11.812 h |
| November | 30.1°C22.8°C | 22.8°C | 62 | 8.8 | 11.512 h |
| December | 30.1°C21.7°C | 21.7°C | 16 | 2.9 | 11.411 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
- Battambang in MarchCambodia · 77 kmHigh 35.3°C · Low 24.9°C · 47 mm rain
- Paoy Paet in MarchCambodia · 144 kmHigh 34.4°C · Low 24.4°C · 49 mm rain
- Kampong Chhnang in MarchCambodia · 151 kmHigh 34.8°C · Low 25.6°C · 43 mm rain
- Chanthaburi in MarchThailand · 208 kmHigh 30.9°C · Low 24.6°C · 85 mm rain
- Phnom Penh in MarchCambodia · 231 kmHigh 34.5°C · Low 25.1°C · 36 mm rain
- Ubon Ratchathani in MarchThailand · 234 kmHigh 34.1°C · Low 23.7°C · 35 mm rain
- Dangkao in MarchCambodia · 234 kmHigh 34.6°C · Low 25.1°C · 36 mm rain
- Kabin Buri in MarchThailand · 241 kmHigh 33.6°C · Low 23.6°C · 34 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 Siem Reap) is explained once on the Siem Reap year overview and on the Sources, method and limits page.