Siem Reap Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore Siem Reap’s temperature statistics in detail, including day and night variations and monthly averages. We’ll also compare the annual temperature to other cities in Cambodia.
Monthly Temperature Averages
Year-round, Siem Reap experiences a consistently very warm climate. On average, maximum daytime temperatures range from a very hot 36°C in April to a very warm 32°C in December. Nighttime temperatures can drop, with averages reaching 22°C in December.
The chart below illustrates the average maximum day and minimum night temperatures in Siem Reap by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM. During this time the sun's heating effect is the strongest.
The chart below shows the average temperature throughout the year:
April, the city’s warmest month, also receives about 107 mm of rainfall spread over roughly 7 days. For more information, please visit our Siem Reap Precipitation page.
Annual Temperatures in Cambodia Compared
The map below shows the annual temperature across Cambodia. You can also select the different months in case you are interested in a specific month.
very warm
warm
pleasant
moderate
cold
very cold
Siem Reap Temperatures Compared World Wide
Siem Reap’s average annual maximum temperature is 34°C. Let’s compare this with some popular tourist destinations:
In Barcelona, Spain, the average annual temperature is around 21°C, resulting in warm summers and mild winters throughout the year.
Meanwhile, Queenstown, New Zealand, the average annual temperature is significantly lower at 10°C, with mild summers and cold winters.
In Seoul, South Korea, the average annual temperature is 18°C, featuring distinct seasons.
In Tokyo, Japan, the average annual temperature is 21°C, expect warmer summers and milder winters than Amsterdam.
How are these Temperatures Measured?
Generally, temperature data depicting climate is usually given over a 30-year average in order to reduce short-term fluctuations and reveal better long-term trends in climate conditions.
This temperature data is taken from land-based thermometers, ocean buoys, ships, and satellites. These measurements are transmitted to weather stations and climate centers around the globe where they are processed, averaged, and analyzed in order to monitor the trends and create climate models.
Global Warming and Its Effects
Climate change is affecting worldwide temperatures, including in Siem Reap. It has massive impacts on both local and global levels:
- Global Temperature Rise: The average global land and sea temperatures have risen by about 1.2°C since pre-industrial times.
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Local Impacts: Most regions of the world are witnessing warmer winters with fewer frost and snowfall days. The global frequency and severity of heatwaves have increased. For example, Europe's summers of 2018, 2019, and 2020 all broke records. Summers are also becoming drier; however, during winter, inland regions have experienced increased rainfall. This has caused elevated river levels and more cases of flooding.
Many countries are experiencing earlier springs and later autumns. This is why some bird species have shifted their migration dates.
For more detailed information about Siem Reap’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Siem Reap climate page.
Current temperature in Siem Reap
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