Siem Reap Weather and Climate: A Comprehensive Guide
The weather in Siem Reap is characterized by a steady average temperature throughout the year.
It is also known for its large amounts of rainfall.
Now, let’s explore all the climate details to give you a full picture.
Average maximum day and minimum night temperature
With minimal seasonal shifts, Siem Reap experiences a constant climate year-round. Typically, average maximum daytime temperatures range from a very hot 36°C in April to a very warm 32°C in the coolest month, December.
Nights are cooler, with lows often dropping to around 22°C during the colder months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Siem Reap has a notably wet climate with abundant precipitation, recording 1470 mm of rainfall per year. The climate in Siem Reap shows significant variation throughout the year. Expect heavy rainfall in September, with an average of 286 mm of precipitation over 18 rainy days. In contrast, January offers drier and sunnier days, with around 9.8 mm of rainfall over a single rainy day. For more details, please visit our Siem Reap Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Average humidity
The relative humidity is high throughout the year in Siem Reap.
The city experiences its highest humidity in September, reaching 75%. In March, the humidity drops to its lowest level at 58%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
almost clear and no rain broken clouds and no rain clear and no rainForecast for Siem Reap
3 m/s
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The best time of year to visit Siem Reap in Cambodia
Other facts from our historical weather data:Most rainfall (rainy season) is seen in May, June, July, August, September and October.
Yes, the months of January, February and December are very dry.
April has an average maximum temperature of 36°C and is the hottest month of the year.
The coolest month is December with an average maximum temperature of 32°C.
September tops the wettest month list with 286 mm of rainfall.
January is the driest month with 10 mm of precipitation.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
