Bangor weather in January 2025

Q: How cold is it in Bangor in January?

Daytime temperatures usually reach 7°C in Bangor in January, falling to 2°C at night.

Q: How sunny is it in Bangor in January?

There are normally 2 hours of bright sunshine each day in Bangor in January - that's 21% of daylight hours.

Q: Is the sea cold around Bangor in January?

The average sea temperature around Bangor in January is 9°C.

Q: Does it rain in Bangor in January?

There are usually 20 days with some rain in Bangor in January and the average monthly rainfall is 98mm.

Expect 45°F daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Bangor in January. Check more long-term weather averages for Bangor in January before you book your next holiday to Northern Ireland in 2025/2026.

45
45°F max day temperature
2
2 hours of sunshine per day
20
20 days with some rainfall
36
36°F min night temperature
8
8 hours of daylight per day
0
No heat & humidity
3.9
3.9 inches of monthly rainfall
0
No UV (Maximum) Index UV index
48
48°F sea temperature

More about Bangor

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The January weather guide for Northern Ireland (Bangor) 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) | Imperial (°F)