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December Weather in Koah Thum, Cambodia

Last updated: August 22, 2025

In December, the average temperature in Koah Thum, Cambodia hovers around 27°C (81°F). Expect a pleasant range, with minimums dipping to 20°C (67°F) and maximums reaching up to 34°C (94°F). However, be prepared for some rain, as the region sees about 46 mm (1.8 in) of precipitation over 7 days. With an average humidity of 76%, the air might feel quite tropical!

December Temperature in Koah Thum

In December in Koah Thum, the average temperature is 27°C (81°F). The maximum can reach 34°C (94°F), while the minimum can drop to as low as 20°C (67°F). It's a great time to visit, as the weather is warm and perfect for outdoor activities.

December Weather in Koah Thum: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Koah Thum, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koah Thum, December typically has an average temperature of 27°C (81°F), with highs reaching up to 34°C (94°F) and lows dropping to around 20°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec818285858584838382828281
Data source: Temperature data for Koah Thum generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Koah Thum

In Koah Thum in December, the precipitation amount is 46 mm (1.8 in) over the course of 7 days.

December Precipitation Trends in Koah Thum

The chart displays monthly precipitation patterns in Koah Thum, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Koah Thum, December typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec23112410215417420122224525812246
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Koah Thum

In Koah Thum in December, humidity is 76%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket enveloping you, making outdoor activities feel stifling and sweat-inducing, which can be challenging for traveling.

December Average Humidity in Koah Thum

This chart illustrates the average monthly humidity levels in Koah Thum, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Koah Thum is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec62%61%61%67%78%84%86%88%87%85%84%76%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Koah Thum

In Koah Thum in December, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Koah Thum.

Maximum UV Index Levels in Koah Thum for December

The chart shows the monthly maximum UV Index (UVI) for Koah Thum in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Koah Thum typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec101415151513141414131110
Data source: Koah Thum December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Koah Thum Compares to Other Months

Weather in Koah Thum varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Koah Thum, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Koah Thum, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)23 mm (0.9 inches)62%very high
February Weather28°C (82°F)11 mm (0.4 inches)61%extreme
March Weather29°C (85°F)24 mm (0.9 inches)61%extreme
April Weather30°C (86°F)101 mm (4.0 inches)67%extreme
May Weather29°C (85°F)154 mm (6.1 inches)78%extreme
June Weather29°C (84°F)174 mm (6.8 inches)84%extreme
July Weather28°C (83°F)201 mm (7.9 inches)86%extreme
August Weather28°C (83°F)222 mm (8.7 inches)88%extreme
September Weather28°C (83°F)245 mm (9.6 inches)87%extreme
October Weather28°C (82°F)258 mm (10.1 inches)84%extreme
November Weather28°C (82°F)122 mm (4.8 inches)84%extreme
December Weather27°C (81°F)46 mm (1.8 inches)76%very high

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