Cha Am weather in December 2025

Expect daytime maximum temperatures of 29°C in Cha Am, Thailand in December based on long-term weather averages. There are 9 hours of sunshine per day on average.

  • 29°C maximum daytime temperature in December in Cha Am29
    29°C max day temperature
  • 9 hours of sunshine per day
  • 2 days with some rainfall in December in Cha Am2
    2 days with some rainfall
  • 21°C minimum night-time temperature in December in Cha Am21
    21°C min night temperature
  • 11 hours of daylight per day in December in Cha Am11
    11 hours of daylight per day
  • Moderate heat & humidity in December in Cha AmM
    Moderate heat & humidity
  • 16 mm monthly rainfall in December in Cha Am16
    16 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in December in Cha Am9
    9 (Very High) UV index
  • 27°C sea temperature in December in Cha Am27
    27°C sea temperature

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The December weather guide for Thailand (Cha Am) 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.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Cha Am in December?

Daytime temperatures usually reach 29°C in Cha Am in December with moderate heat and humidity, falling to 21°C at night.

How sunny is it in Cha Am in December?

There are normally 9 hours of bright sunshine each day in Cha Am in December - that's 75% of daylight hours.

How warm is the sea around Cha Am in December?

The average sea temperature around Cha Am in December is 27°C.

Does it ever rain in Cha Am in December?

There are usually 2 days with some rain in Cha Am in December and the average monthly rainfall is 16mm.

Cha Am December sunrise & sunset times

Browse the sunrise and sunset times for Cha Am in December 2025. Select a month to view Cha Am sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:26 17:52
Tuesday, 16th December 2025 06:34 17:57
Wednesday, 31st December 2025 06:41 18:05

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