Coleraine weather in June 2026

Q: How warm is it in Coleraine in June?

Daytime temperatures usually reach 17°C in Coleraine in June, falling to 9°C at night.

Q: How sunny is it in Coleraine in June?

There are normally 6 hours of bright sunshine each day in Coleraine in June - that's 34% of daylight hours.

Q: Is the sea cold around Coleraine in June?

The average sea temperature around Coleraine in June is 11°C.

Q: Does it rain in Coleraine in June?

There are usually 15 days with some rain in Coleraine in June and the average monthly rainfall is 68mm.

Expect daytime maximum temperatures of 63°F in Coleraine, Northern Ireland in June based on long-term weather averages. There are 5 hours of sunshine per day on average with 16 days with some rainfall and typically 2.6 inches of rainfall in the month.

63
63°F max day temperature
5
5 hours of sunshine per day
16
16 days with some rainfall
46
46°F min night temperature
17
17 hours of daylight per day
0
No heat & humidity
2.6
2.6 inches of monthly rainfall
5
5 (Moderate) UV index

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The June 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)