Swansea weather in December 2024

Expect 8°C daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Swansea in December. Check more long-term weather averages for Swansea in December before you book your next holiday to Wales in 2024/2025.

  • 8°C maximum daytime temperature in December in Swansea8
    8°C max day temperature
  • 2 hours of sunshine per day
  • 20 days with some rainfall in December in Swansea20
    20 days with some rainfall
  • 4°C minimum night-time temperature in December in Swansea4
    4°C min night temperature
  • 8 hours of daylight per day in December in Swansea8
    8 hours of daylight per day
  • No heat & humidity in December in Swansea0
    No heat & humidity
  • 140 mm monthly rainfall in December in Swansea140
    140 mm of monthly rainfall
  • No UV (maximum) index in December in Swansea0
    No UV (Maximum) Index UV index
  • 10°C sea temperature in December in Swansea10
    10°C sea temperature

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The December weather guide for Wales (Swansea) 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 Wales

How warm is it in Swansea in December?

Daytime temperatures usually reach 8°C in Swansea in December, falling to 4°C at night.

How sunny is it in Swansea in December?

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

Is the sea cold around Swansea in December?

The average sea temperature around Swansea in December is 10°C.

Does it rain in Swansea in December?

There are usually 20 days with some rain in Swansea in December and the average monthly rainfall is 140mm.

Swansea December sunrise & sunset times

Browse the sunrise and sunset times for Swansea in December 2024. Select a month to view Swansea sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st December 2024 08:00 16:09
Monday, 16th December 2024 08:17 16:07
Tuesday, 31st December 2024 08:22 16:16

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