Hillsborough weather in December 2025

Q: How cold is it in Hillsborough in December?

Daytime temperatures usually reach 7°C in Hillsborough in December, falling to 2°C at night.

Q: How sunny is it in Hillsborough in December?

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

Q: Does it rain in Hillsborough in December?

There are usually 19 days with some rain in Hillsborough in December and the average monthly rainfall is 104mm.

Expect 7°C daytime maximum temperatures in the shade with on average 1 hour of sunshine per day in Hillsborough in December based on long-term weather averages. There is usually 19 days with some rainfall and 104 mm of average monthly rainfall in December.

7
7°C max day temperature
1
1 hour of sunshine per day
19
19 days with some rainfall
2
2°C min night temperature
7
7 hours of daylight per day
0
No heat & humidity
104
104 mm of monthly rainfall
0
No UV (Maximum) Index UV index

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The December weather guide for Northern Ireland (Hillsborough) 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 cold is it in Hillsborough in December?

Daytime temperatures usually reach 7°C in Hillsborough in December, falling to 2°C at night.

How sunny is it in Hillsborough in December?

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

Does it rain in Hillsborough in December?

There are usually 19 days with some rain in Hillsborough in December and the average monthly rainfall is 104mm.

Hillsborough December sunrise & sunset times

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

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