Cancun weather in December 2025

Expect daytime maximum temperatures of 82°F in Cancun, Mexico's Caribbean Coast in December based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 3.3 inches of rainfall in the month.

  • 82°F maximum daytime temperature in December in Cancun82
    82°F max day temperature
  • 6 hours of sunshine per day
  • 7 days with some rainfall in December in Cancun7
    7 days with some rainfall
  • 64°F minimum night-time temperature in December in Cancun64
    64°F min night temperature
  • 11 hours of daylight per day in December in Cancun11
    11 hours of daylight per day
  • Moderate heat & humidity in December in CancunM
    Moderate heat & humidity
  • 3.3 inches monthly rainfall in December in Cancun3.3
    3.3 inches of monthly rainfall
  • UV (maximum) index 7 (High) in December in Cancun7
    7 (High) UV index
  • 81°F sea temperature in December in Cancun81
    81°F sea temperature

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The December weather guide for Mexico's Caribbean Coast (Cancun) 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)  |  Imperial (°F)

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More about Mexico's Caribbean Coast

How hot is it in Cancun in December?

Daytime temperatures usually reach 82°F in Cancun in December with moderate heat and humidity, falling to 64°F at night.

How sunny is it in Cancun in December?

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

How warm is the sea around Cancun in December?

The average sea temperature around Cancun in December is 81°F.

Does it rain in Cancun in December?

There are usually 7 days with some rain in Cancun in December and the average monthly rainfall is 3.3 inches.

Cancun December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:08 18:05
Tuesday, 16th December 2025 07:18 18:09
Wednesday, 31st December 2025 07:24 18:17

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