Climate normals · 1970–2000
Siem Reap Climate
Siem Reap is a city in Cambodia (24) with a population of about 139,458. Its average annual temperature is 27.5°C (82°F), with roughly 1362 mm of rain per year.
27.5°C
Avg Temp
1362
Precip (mm/yr)
Apr
Hottest Month
Dec
Coldest Month
Siem Reap Climate
Siem Reap has an average annual temperature of 27.5°C (82°F) and receives about 1362 mm of precipitation per year. The warmest month is April and the coldest is December. Figures are 1970–2000 climate normals.
27.5°C
Avg Temp
1362
Precip (mm/yr)
Apr
Hottest Month
Dec
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 25° / 77° | 1 mm |
| February | 27° / 81° | 7 mm |
| March | 29° / 84° | 23 mm |
| April | 30° / 86° | 60 mm |
| May | 29° / 85° | 143 mm |
| June | 29° / 83° | 175 mm |
| July | 28° / 82° | 194 mm |
| August | 28° / 82° | 195 mm |
| September | 28° / 82° | 265 mm |
| October | 27° / 81° | 203 mm |
| November | 26° / 79° | 83 mm |
| December | 25° / 77° | 13 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Siem Reap
The most comfortable months to visit Siem Reap are typically January, December and February, when temperatures are mildest and rainfall is relatively low. The hottest month is April (around 35°C high). The coldest is December (near 19°C low). September is usually the wettest month.
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Frequently Asked Questions
The most comfortable months to visit Siem Reap are typically January, December and February, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).
Siem Reap, Cambodia has an average annual temperature of 27.5°C and about 1362 mm of precipitation per year. The warmest month is April and the coldest is December.
In April, the hottest month, daily highs in Siem Reap average about 35°C (95°F).
Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.