Cardiff weather in December 2020

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  • 8°C maximum daytime temperature in December in Cardiff8
    8°C max day temperature
  • 2 hours of sunshine per day
  • 19 days with some rainfall in December in Cardiff19
    19 days with some rainfall
  • 3°C minimum night-time temperature in December in Cardiff3
    3°C min night temperature
  • 8 hours of daylight per day in December in Cardiff8
    8 hours of daylight per day
  • No heat & humidity in December in Cardiff0
    No heat & humidity
  • 109 mm monthly rainfall in December in Cardiff109
    109 mm of monthly rainfall
  • No UV (maximum) index in December in Cardiff0
    No UV (Maximum) Index UV index
  • 9°C sea temperature in December in Cardiff9
    9°C sea temperature
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The December weather guide for Cardiff, Wales 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.

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How warm is it in Cardiff in December?

Daytime temperatures usually reach 8°C in Cardiff in December, falling to 3°C at night.

How sunny is it in Cardiff in December?

There are normally 2 hours of bright sunshine each day in Cardiff in December - that's 19% of daylight hours.

Is the sea cold around Cardiff in December?

The average sea temperature around Cardiff in December is 9°C.

Does it rain in Cardiff in December?

There are usually 19 days with some rain in Cardiff in December and the average monthly rainfall is 109mm.

Cardiff sunrise & sunset times for December 2020

Browse the sunrise & sunset times for Cardiff in December 2020. Select a month to view Cardiff sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Tuesday, 1st December 2020 07:56 16:07
Wednesday, 16th December 2020 08:13 16:04
Thursday, 31st December 2020 08:18 16:14
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Metric (°C / mm)  |  Imperial (°F / inches)

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Where's warm in Wales in December?

Below are average maximum temperatures at popular destinations in Wales in December. Select a destination to see more weather parameters.

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