Weather in Siem Reap
What's the weather like in Siem Reap?
Siem Reap has warm year-round and heavy rainfall, especially in the wet season. Average daytime highs range from 32°C (90°F) in January to 32°C (90°F) in July, with overnight lows around 20°C (68°F) and 25°C (77°F) respectively.
No month in Siem Reap sits in the typical comfort range of 18–26°C. The most temperate months are usually September and October.
Quick facts
- Country
- 🇰🇭 Cambodia
- Region
- Asia
- Time zone
- Asia/Phnom_Penh
- Coordinates
- 13.363, 103.856
Monthly climate
Long-run averages for each month of the year.
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 32°C / 90°F | 20°C / 68°F | 5 mm | 1 | 0 |
| February | 33°C / 91°F | 21°C / 70°F | 5 mm | 1 | 0 |
| March | 35°C / 95°F | 23°C / 73°F | 30 mm | 3 | 0 |
| April | 35°C / 95°F | 25°C / 77°F | 90 mm | 7 | 0 |
| May | 34°C / 93°F | 25°C / 77°F | 170 mm | 11 | 0 |
| June | 33°C / 91°F | 25°C / 77°F | 210 mm | 15 | 0 |
| July | 32°C / 90°F | 25°C / 77°F | 200 mm | 16 | 0 |
| August | 32°C / 90°F | 25°C / 77°F | 230 mm | 18 | 0 |
| September | 31°C / 88°F | 25°C / 77°F | 275 mm | 18 | 0 |
| October | 31°C / 88°F | 24°C / 75°F | 260 mm | 15 | 0 |
| November | 31°C / 88°F | 23°C / 73°F | 135 mm | 9 | 0 |
| December | 31°C / 88°F | 21°C / 70°F | 30 mm | 3 | 0 |
Siem Reap by month
Detailed weather for any specific month:
Seasonal patterns to know
Southeast Asia rainy season runs May–October. Daily afternoon thunderstorms are typical. Dry season is November–April.
Cities with a similar climate to Siem Reap
Live forecast, sunrise/sunset, and more.