Carrickfergus weather in December 2025

Expect 7°C daytime maximum temperatures in the shade with on average 1 hours of sunshine per day in Carrickfergus in December. Check more long-term weather averages for Carrickfergus in December before you book your next holiday to Northern Ireland in 2025/2026.

  • 7°C maximum daytime temperature in December in Carrickfergus7
    7°C max day temperature
  • 1 hour of sunshine per day
  • 20 days with some rainfall in December in Carrickfergus20
    20 days with some rainfall
  • 3°C minimum night-time temperature in December in Carrickfergus3
    3°C min night temperature
  • 7 hours of daylight per day in December in Carrickfergus7
    7 hours of daylight per day
  • No heat & humidity in December in Carrickfergus0
    No heat & humidity
  • 90 mm monthly rainfall in December in Carrickfergus90
    90 mm of monthly rainfall
  • No UV (maximum) index in December in Carrickfergus0
    No UV (Maximum) Index UV index
  • 10°C sea temperature in December in Carrickfergus10
    10°C sea temperature

More about Carrickfergus

Carrickfergus by month

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The December weather guide for Northern Ireland (Carrickfergus) 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 the UK

How cold is it in Carrickfergus in December?

Daytime temperatures usually reach 7°C in Carrickfergus in December, falling to 3°C at night.

How sunny is it in Carrickfergus in December?

There are normally 1 hour of bright sunshine each day in Carrickfergus in December - that's 18% of daylight hours.

Is the sea cold around Carrickfergus in December?

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

Does it rain in Carrickfergus in December?

There are usually 20 days with some rain in Carrickfergus in December and the average monthly rainfall is 90mm.

Carrickfergus December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 08:23 16:01
Tuesday, 16th December 2025 08:41 15:57
Wednesday, 31st December 2025 08:47 16:06

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