Coleraine weather in October 2025

Q: How warm is it in Coleraine in October?

Daytime temperatures usually reach 13°C in Coleraine in October, falling to 7°C at night.

Q: How sunny is it in Coleraine in October?

There are normally 3 hours of bright sunshine each day in Coleraine in October - that's 28% of daylight hours.

Q: How warm is the sea around Coleraine in October?

The average sea temperature around Coleraine in October is 13°C.

Q: Does it rain in Coleraine in October?

There are usually 19 days with some rain in Coleraine in October and the average monthly rainfall is 100mm.

Expect daytime maximum temperatures of 55°F in Coleraine, Northern Ireland in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 22 days with some rainfall and typically 4.4 inches of rainfall in the month.

55
55°F max day temperature
3
3 hours of sunshine per day
22
22 days with some rainfall
45
45°F min night temperature
10
10 hours of daylight per day
0
No heat & humidity
4.4
4.4 inches of monthly rainfall
2
2 (Low) UV index

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The October weather guide for Northern Ireland (Coleraine) 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)