Cayman Islands weather in December 2025

Expect daytime maximum temperatures of 29°C in Cayman Islands in December and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 57 mm of rainfall in the month.

  • 29°C maximum daytime temperature in December in Cayman Islands (George Town)29
    29°C max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in December in Cayman Islands (George Town)12
    12 days with some rainfall
  • 23°C minimum night-time temperature in December in Cayman Islands (George Town)23
    23°C min night temperature
  • 11 hours of daylight per day in December in Cayman Islands (George Town)11
    11 hours of daylight per day
  • High heat & humidity in December in Cayman Islands (George Town)H
    High heat & humidity
  • 57 mm monthly rainfall in December in Cayman Islands (George Town)57
    57 mm of monthly rainfall
  • UV (maximum) index 7 (High) in December in Cayman Islands (George Town)7
    7 (High) UV index
  • 27°C sea temperature in December in Cayman Islands (George Town)27
    27°C sea temperature

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The December weather guide for Cayman Islands, represented by George Town, (George Town) 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 the Cayman Islands in December?

Daytime temperatures usually reach 29°C in George Town, Cayman Islands in December with high heat and humidity, falling to 23°C at night.

How sunny is it in the Cayman Islands in December?

There are normally 7 hours of bright sunshine each day in George Town, Cayman Islands in December - that's 66% of daylight hours.

How warm is the sea around the Cayman Islands in December?

The average sea temperature around George Town, Cayman Islands in December is 27°C.

Does it rain in the Cayman Islands in December?

There are usually 12 days with some rain in George Town, Cayman Islands in December and the average monthly rainfall is 57mm.

Cayman Islands December sunrise & sunset times

Browse the sunrise and sunset times for Cayman Islands in December 2025. Select a month to view Cayman Islands sunrise and sunset times for the next 12 months. The Cayman Islands sunrise and sunset times shown below are for George Town.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:43 17:46
Tuesday, 16th December 2025 06:52 17:51
Wednesday, 31st December 2025 06:59 17:58

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