December
OK
31°C / 21°C
3 rain days
hot, dry
- very low rainfall (only 3 rain days)
- outside peak hazard season
- warm evenings without humidity overload
Best time to visit Siem Reap
Siem Reap, Cambodia — ranked month by month from data: temperature, rainfall, snow, and peak hazard seasons. Every month has trade-offs — pick what you can tolerate.
About Siem Reap
Siem Reap is the second-largest city of Cambodia, as well as the capital and largest city of Siem Reap Province in northwestern Cambodia.
— condensed from Wikipedia
OK — shoulder months
January
OK
32°C / 20°C
1 rain days
hot, dry
- very low rainfall (only 1 rain days)
- outside peak hazard season
- warm evenings without humidity overload
February
OK
33°C / 21°C
1 rain days
hot, dry
- very low rainfall (only 1 rain days)
- outside peak hazard season
- warm evenings without humidity overload
November
OK
31°C / 23°C
9 rain days
hot
- manageable rain (9 days)
- outside peak hazard season
March
OK
35°C / 23°C
3 rain days
hot, dry
- very low rainfall (only 3 rain days)
- outside peak hazard season
October
OK
31°C / 24°C
15 rain days
hot, rainy
- outside peak hazard season
April
OK
35°C / 25°C
7 rain days
hot
- manageable rain (7 days)
- outside peak hazard season
September
OK
31°C / 25°C
18 rain days
hot, very wet
- outside peak hazard season
May
OK
34°C / 25°C
11 rain days
hot, rainy
- outside peak hazard season
July
OK
32°C / 25°C
16 rain days
hot, very wet
- outside peak hazard season
June
OK
33°C / 25°C
15 rain days
hot, rainy
- outside peak hazard season
August
OK
32°C / 25°C
18 rain days
hot, very wet
- outside peak hazard season
How we ranked these
Each month is scored on temperature comfort (18–27°C avg high is the sweet spot), rainfall (more rain days = lower score), snow days, and peak hazard seasons (hurricanes, monsoons, etc.). Green-tier months are within ideal range with no major issues. Yellow are workable but with trade-offs. Red has at least one significant problem — extreme heat or cold, heavy rain, or peak storm season.