Best time to visit Siem Reap

Usually the most comfortable: November, December and January. Typical weather over 2001–2020, not a forecast.

1. January: hot, high 33°, low 21°, about 12 mm of rain, comfort 77 out of 100
   JJan
2. February: hot, high 36°, low 23°, about 16 mm of rain, comfort 68 out of 100
   FFeb
3. March: hot, high 36°, low 25°, about 46 mm of rain, comfort 63 out of 100
   MMar
4. April: hot, high 36°, low 26°, about 75 mm of rain, comfort 61 out of 100
   AApr
5. May: hot and wet, high 34°, low 25°, about 140 mm of rain, comfort 60 out of 100
   MMay
6. June: wet, high 32°, low 25°, about 168 mm of rain, comfort 65 out of 100
   JJun
7. July: wet, high 30°, low 24°, about 197 mm of rain, comfort 66 out of 100
   JJul
8. August: wet, high 30°, low 24°, about 195 mm of rain, comfort 67 out of 100
   AAug
9. September: wet, high 30°, low 24°, about 231 mm of rain, comfort 62 out of 100
   SSep
10. October: wet, high 31°, low 23°, about 138 mm of rain, comfort 74 out of 100
    OOct
11. November: warm, high 31°, low 22°, about 37 mm of rain, comfort 86 out of 100
    NNov
12. December: warm, high 32°, low 20°, about 7 mm of rain, comfort 83 out of 100
    DDec

Taller is more comfortable. The brighter bars are the best months; the filled label is this month.

Comfort uses the typical daytime high (most comfortable at 20 to 28°C) and the typical rainfall (most comfortable under 1 mm a day), averaged over 2001–2020. Highs and lows are worked out from the monthly average temperature and the average daily swing, so they are close, not exact. It is not a forecast. Humidity, crowds, prices and festivals are not included, and a mountain or coast can differ from its half-degree grid cell.