What’s the climate like in Siem Reap?
The current climate of Siem Reap features average monthly temperatures ranging from highs of 36°C during the day to lows of 31°C. The average yearly temperature is around 34°C. At night, temperatures in the colder months average around 22°C and in the warmer months around 26°C.
The highest temperature recorded in Siem Reap in recent years was 56°C in February 2015. The lowest daytime temperature recorded was 22°C in October 2022.
On average, Siem Reap receives 1399 mm of precipitation each year. For comparison, London gets 701 mm of precipitation annually.
Best time to visit Siem Reap?
The best time to visit Siem Reap for sunny weather is January through March, November and December. During this period, you'll have good temperatures and not too much rain, making it a great time to visit Siem Reap. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
Climate Table of Siem Reap
The climate table of Siem Reap shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp. max (°C) | 32 | 33 | 35 | 36 | 35 | 34 | 33 | 33 | 32 | 32 | 32 | 31 |
| Temp. min (°C) | 22 | 23 | 26 | 26 | 27 | 26 | 26 | 26 | 25 | 25 | 24 | 22 |
| Precipitation |  |
|
|
|
|
|
|
|
|
|
|
|
| Precipitation (mm) | 10 | 11 | 38 | 61 | 158 | 149 | 173 | 191 | 285 | 227 | 78 | 18 |
| UV Index | 8 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 34°C
- Highest temperature: 36°C in April
- Lowest temperature: 31°C in December
- Precipitation: 1399 mm per year, averaging 117 mm per month
- Driest months: 10 mm in January, 11 mm in February and 18 mm in December
- Wettest months: 285 mm in September, 227 mm in October and 191 mm in August
Plan your next holiday
Don’t miss the best holiday deals for Siem Reap and see what our partners have for you.
Table of Contents
Average Temperature per Month in Siem Reap
This graph shows the average maximum temperatures per month in Siem Reap, Cambodia. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Siem Reap
This graph shows how much precipitation Siem Reap, Cambodia, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in Siem Reap
This graph shows the average UV index per month in Siem Reap, Cambodia. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Siem Reap
This graph shows the average yearly temperature in Siem Reap, Cambodia. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Siem Reap
This chart shows the total yearly precipitation in Siem Reap, Cambodia, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences in Siem Reap
The weather in Siem Reap is rated an average of 0 out of 5 stars by 5 visitors. Have you been to Siem Reap? Share your weather experience to help other visitors.
Have you been to Siem Reap?
Share your weather experiences in Siem Reap.
Average Weather in Siem Reap by Month
Click on a month below to see detailed weather info for Siem Reap. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
