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Siemreab weather in December 2025
Expect daytime maximum temperatures of 30°C in Siemreab, Cambodia in December and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average.
- 30°C max day temperature
30 - 9 hours of sunshine per day
- 2 days with some rainfall
2 - 20°C min night temperature
20 - 11 hours of daylight per day
11 - High heat & humidity
H - 7 mm of monthly rainfall
7 - 9 (Very High) UV index
9
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Recommended for Cambodia
The December weather guide for Cambodia (Siemreab) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about Cambodia
How hot is it in Siemreab in December?
Daytime temperatures usually reach 30°C in Siemreab in December with high heat and humidity, falling to 20°C at night.
How sunny is it in Siemreab in December?
There are normally 9 hours of bright sunshine each day in Siemreab in December - that's 77% of daylight hours.
Does it ever rain in Siemreab in December?
There are usually 2 days with some rain in Siemreab in December and the average monthly rainfall is 7mm.
Siemreab December sunrise & sunset times
Browse the sunrise and sunset times for Siemreab in December 2025. Select a month to view Siemreab sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Monday, 1st December 2025 | 06:12 | 17:35 |
| Tuesday, 16th December 2025 | 06:20 | 17:40 |
| Wednesday, 31st December 2025 | 06:27 | 17:48 |
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