Siem Reap Weather in December

What's the weather like in Siem Reap (Siem Reap) in December 2023?

The climate in Siem Reap during December can be summarized as hot, humid and very dry.

December is in the winter in Siem Reap and is typically the coldest month of the year. Daytime maximum temperatures average around a muggy 30°C (87°F), whilst at night 20°C (67°F) is normal.

Siem Reap weather averages (imperial / metric)
Daytime temperature 30.4°C 86.6°F
Nightly temperature 19.7°C 67.4°F
Average temperature 25°C 77°F
Daily sunshine 9.3 hrs
Avg rainfall 7 mm 0.3 ins
Rainy days 2 days
Sea temperature 27.4°C 81.3°F
Humidity 80%
Windspeed 5.8kph 4 mph

On average December is the 2nd driest month of the year in Siem Reap with around 7mm 0.3 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 9.3 hours of sunshine per day.

December temperatures in Siem Reap

Siem Reap average temperature in December

December rainfall

Siem Reap average rain in December

December hourly sunshine

Siem Reap average rain in December

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Siem Reap in December 2023.

Other monthly averages

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Siem Reap weather stats

Siem Reap weather statistics
Hottest month: April 35.7°C 96.3°F
Driest month: January 1mm 0ins
Sunniest month: January 9.6hrs
Coldest month: December 30.1°C 86.2°F
Wettest month: September 250mm 9.8ins
Map showing location of Siem Reap (13.36179, 103.86056)

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