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Best time to go to Siem Reap

Find information about the climate and when is the best time to go to Siem Reap.
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When is the best time to visit Siem Reap?

In general the best time to visit Siem Reap is probably January, February, when the weather is usually great. The hottest months are March, April, May, while the coldest months are January, September, December.
Depending on the activities you want to experience, you may choose different months to visit:
  • The best time for a sun tanning holiday is March, April, May. Average maximum temperatures are up to +95°F in April and it has 3 sunny days on average.
  • In general, it’s pleasant to walk and do outdoor activities during January - December.
  • If you want to avoid wet weather, then your choice is August, September, October with the lowest chance of rain.

Average weather in Siem Reap in different months

This is the average weather in Siem Reap for each month based on historic data:

In January, February the weather is great. There are an average of 11 sunny days in January and the temperature ranges from +72°F to +88°F.

December usually has good weather. Average maximum temperature reaches +86°F during December.

In March, April, May, June, July, August, September, October, November the weather is average. Expect around 217 rainy days, and the precipitation amounts to approximately 253 mm in September.

Climate in Siem Reap

Here is the detailed breakdown of the climate in Siem Reap for each month:
JanFebMarAprMayJunJulAugSepOctNovDec
Maximum Temperature
+97°F+99°F+102°F+104°F+104°F+100°F+100°F+97°F+97°F+93°F+95°F+95°F
Average Maximum Temperature
+88°F+91°F+93°F+95°F+93°F+91°F+90°F+90°F+88°F+88°F+88°F+86°F
Minimum Temperature
+57°F+59°F+59°F+66°F+72°F+75°F+73°F+75°F+72°F+66°F+61°F+55°F
Avg. water temperature
------------
Humidity, %
686869727777787983837872
Rain, mm
91552971451291381552532327613
Snow, mm
000000000000
Average wind speed, m/s
111112221111
Sunny Days
11107300000036
Cloud Days
1611843322141019
Rainy Days
581522272628282826176
Snowy Days
000000000000

Average Temperature

Here are the average maximum and minimum temperatures in Siem Reap during the whole year:
The hottest month in Siem Reap is April with average maximum temperature going up to +95°F. The coldest month is December with the lowest temperatures of +70°F.

Humidity

The temperature feels different depending on humidity. Here is how humidity in Siem Reap looks throughout the year, in %:
The most humid month in Siem Reap is October with average humidity going up to 83%. The least humid month is January with an average humidity of 68%.

Rain

Amount of rainfall in mm. in Siem Reap during the whole year based on historical data:
The sunniest and driest month is January with approximately 11 sunny days and a total precipitation of around 9 mm. The rainiest and wettest month is September with approximately 28 rainy days and 253 mm of total precipitation.

FAQ

Frequently asked questions about the weather in Siem Reap:

What is the hottest month in Siem Reap?

The hottest month in Siem Reap is April with average maximum temperature of +95°F.

What is the coldest month in Siem Reap?

The coldest month in Siem Reap is December with minimum temperatures of +70°F.

Is Siem Reap worth visiting in winter?

Winter in Siem Reap usually has great weather. The best month is probably April with +95°F and 3 sunny days.

When does it rain the least in Siem Reap?

if you're looking to visit Siem Reap when it rains the least, you should plan your trip for September, October, August. During this time, rainfall is rare with the driest month being January with only 9 mm of rain.

Other cities in Cambodia

Check out the weather for other cities in Cambodia.

Monthly weather in Siem Reap

Source of the data

For this page, we’ve looked at the typical weather in Siem Reap, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.