Cambodia weather in December 2025

Expect daytime maximum temperatures of 86°F in Cambodia in December and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average.

  • 86°F maximum daytime temperature in December in Cambodia (Phnom Penh)86
    86°F max day temperature
  • 9 hours of sunshine per day
  • 4 days with some rainfall in December in Cambodia (Phnom Penh)4
    4 days with some rainfall
  • 72°F minimum night-time temperature in December in Cambodia (Phnom Penh)72
    72°F min night temperature
  • 11 hours of daylight per day in December in Cambodia (Phnom Penh)11
    11 hours of daylight per day
  • High heat & humidity in December in Cambodia (Phnom Penh)H
    High heat & humidity
  • 1.1 inches monthly rainfall in December in Cambodia (Phnom Penh)1.1
    1.1 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in December in Cambodia (Phnom Penh)10
    10 (Very High) UV index

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The December weather guide for Cambodia (Phnom Penh) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Cambodia destinations

Below are average maximum temperatures at popular countries, regions and places in Cambodia in December. Select a holiday destination to see more weather parameters.

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Metric (°C)  |  Imperial (°F)

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More about Cambodia

How hot is it in Cambodia in December?

Daytime temperatures usually reach 86°F in Phnom Penh, Cambodia in December with high heat and humidity, falling to 72°F at night.

How sunny is it in Cambodia in December?

There are normally 9 hours of bright sunshine each day in Phnom Penh, Cambodia in December - that's 74% of daylight hours.

Does it rain in Cambodia in December?

There are usually 4 days with some rain in Phnom Penh, Cambodia in December and the average monthly rainfall is 1.1 inches.

Cambodia December sunrise & sunset times

Browse the sunrise and sunset times for Cambodia in December 2025. Select a month to view Cambodia sunrise and sunset times for the next 12 months. The Cambodia sunrise and sunset times shown below are for Phnom Penh.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:04 17:34
Tuesday, 16th December 2025 06:12 17:40
Wednesday, 31st December 2025 06:19 17:47

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