Carrickfergus weather in December 2025

Q: How cold is it in Carrickfergus in December?

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

Q: 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.

Q: Is the sea cold around Carrickfergus in December?

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

Q: 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.

Expect daytime maximum temperatures of 7°C in Carrickfergus, Northern Ireland in December based on long-term weather averages. There is 1 hour of sunshine per day on average with 20 days with some rainfall and typically 90 mm of rainfall in the month.

7
7°C max day temperature
1
1 hour of sunshine per day
20
20 days with some rainfall
3
3°C min night temperature
7
7 hours of daylight per day
0
No heat & humidity
90
90 mm of monthly rainfall
0
No UV (Maximum) Index UV index
10
10°C sea temperature

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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)

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.

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