Cozumel weather in December 2025

Expect daytime maximum temperatures of 28°C in Cozumel, Mexico's Caribbean Coast in December based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 96 mm of rainfall in the month.

  • 28°C maximum daytime temperature in December in Cozumel28
    28°C max day temperature
  • 6 hours of sunshine per day
  • 9 days with some rainfall in December in Cozumel9
    9 days with some rainfall
  • 19°C minimum night-time temperature in December in Cozumel19
    19°C min night temperature
  • 11 hours of daylight per day in December in Cozumel11
    11 hours of daylight per day
  • Moderate heat & humidity in December in CozumelM
    Moderate heat & humidity
  • 96 mm monthly rainfall in December in Cozumel96
    96 mm of monthly rainfall
  • UV (maximum) index 7 (High) in December in Cozumel7
    7 (High) UV index
  • 27°C sea temperature in December in Cozumel27
    27°C sea temperature

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The December weather guide for Mexico's Caribbean Coast (Cozumel) 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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More about Mexico's Caribbean Coast

How hot is it in Cozumel in December?

Daytime temperatures usually reach 28°C in Cozumel in December with moderate heat and humidity, falling to 19°C at night.

How sunny is it in Cozumel in December?

There are normally 6 hours of bright sunshine each day in Cozumel in December - that's 58% of daylight hours.

How warm is the sea around Cozumel in December?

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

Does it rain in Cozumel in December?

There are usually 9 days with some rain in Cozumel in December and the average monthly rainfall is 96mm.

Cozumel December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:08 18:06
Tuesday, 16th December 2025 07:17 18:10
Wednesday, 31st December 2025 07:24 18:18

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