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Weather & Climate in Siem Reap, Cambodia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Siem Reap has a warm climate with an average annual temperature of 81°F (27°C). Winters average 77°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 239 sunny days per year, above the national average. Annual precipitation totals 53.4 inches (wetter than the 38-inch national average). The city sits at an elevation of 59 feet.
Temperature
77°F Jan (25°C)
82°F Jul (28°C)
| Annual Average | 81.3°F |
| 51% above US avg | |
| January Average | 77°F (25°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 239 days/yr |
Geography
| Elevation | 59 ft (18 m) |
| Area | 309.9 sq mi (802.5 km²) |
| Population Density | 450/sq mi |
| Coordinates | 13.3618°N, 103.8606°W |
| Timezone | Asia/Phnom_Penh |
Precipitation & Snow
Air Quality
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 77°F (25°C) | 0.0 in | Driest |
| February | 80°F (27°C) | 0.3 in | |
| March | 84°F (29°C) | 0.9 in | |
| April | 86°F (30°C) | 2.4 in | Warmest |
| May | 85°F (29°C) | 5.6 in | |
| June | 83°F (28°C) | 6.9 in | |
| July | 82°F (28°C) | 7.6 in | |
| August | 82°F (28°C) | 7.6 in | |
| September | 82°F (28°C) | 10.7 in | Wettest |
| October | 81°F (27°C) | 7.8 in | |
| November | 79°F (26°C) | 3.1 in | |
| December | 76°F (25°C) | 0.5 in | Coldest |
Siem Reap has a seasonal temperature swing of 10°F / from 76°F in December to 86°F in April. Total annual precipitation is 53.4 inches, with September being the wettest month (10.7") and January the driest (0.0").