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
Frequently asked questions
When is the best time to visit Siem Reap?
The most comfortable months in Siem Reap are usually January, February, December, when average highs sit near 18–26°C (64–79°F) with relatively little rain. See the full month-by-month breakdown for the exact figures.
What is the hottest month in Siem Reap?
March is typically the hottest month in Siem Reap, averaging a high of 35°C (95°F).
What is the coldest month in Siem Reap?
January is usually the coldest, with average lows around 20°C (68°F).
Does it snow in Siem Reap?
Snow is rare in Siem Reap; the climate data shows essentially no snowfall across the year.
Live forecast, sunrise/sunset, and more.