Climate of Siem Reap, Cambodia
Area-weighted average across Siem Reap. For where people actually live and travel, see the cities below.
Siem Reap, a subdivision of Cambodia, has a consistently warm climate on average. Area-weighted monthly temperatures across the whole territory range from 24.3°C / 75.7°F in December to 29.7°C / 85.5°F in April, with rainfall from 1 mm / 0 in to 286 mm / 11.3 in depending on the season (1348 mm / 53.1 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 24.4°C75.9°F | 1 mm0″ | Sunny & Warm |
| February | 26.6°C79.9°F | 7 mm0.3″ | Sunny & Hot |
| March | 28.6°C83.5°F | 26 mm1″ | Sunny & Hot |
| April | 29.7°C85.5°F | 65 mm2.6″ | — |
| May | 29°C84.2°F | 148 mm5.8″ | Tropical |
| June | 28.1°C82.6°F | 178 mm7″ | Tropical |
| July | 27.5°C81.5°F | 190 mm7.5″ | Tropical |
| August | 27.5°C81.5°F | 202 mm8″ | Tropical |
| September | 27.2°C81°F | 286 mm11.3″ | Tropical |
| October | 26.7°C80.1°F | 176 mm6.9″ | Tropical |
| November | 25.7°C78.3°F | 58 mm2.3″ | — |
| December | 24.3°C75.7°F | 11 mm0.4″ | Sunny & Warm |
Frequently asked questions
What is the best time to visit Siem Reap?
The best months to visit Siem Reap, Cambodia for sunny, dry weather are January, February, March, December. The warmest month is April at an area-wide average of 29.7°C / 85.5°F, and the driest is January with about 1 mm / 0 in of rainfall.
What is the climate of Siem Reap?
Siem Reap, Cambodia has area-weighted monthly average temperatures ranging from 24.3°C / 75.7°F in December to 29.7°C / 85.5°F in April. Annual rainfall averages about 1348 mm / 53.1 in, with the wettest month being September (286 mm / 11.3 in) and the driest January (1 mm / 0 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Siem Reap?
The hottest month in Siem Reap is April, with an area-wide average temperature of 29.7°C / 85.5°F.
What is the coldest month in Siem Reap?
The coldest month in Siem Reap is December, with an area-wide average temperature of 24.3°C / 75.7°F.
When does it rain most in Siem Reap?
The wettest month in Siem Reap is September, averaging about 286 mm / 11.3 in of rainfall. The driest is January with about 1 mm / 0 in.