Portrush weather in April 2026

Q: How warm is it in Portrush in April?

Daytime temperatures usually reach 11°C in Portrush in April, falling to 4°C at night.

Q: How sunny is it in Portrush in April?

There are normally 5 hours of bright sunshine each day in Portrush in April - that's 35% of daylight hours.

Q: Is the sea cold around Portrush in April?

The average sea temperature around Portrush in April is 8°C.

Q: Does it rain in Portrush in April?

There are usually 16 days with some rain in Portrush in April and the average monthly rainfall is 65mm.

Expect daytime maximum temperatures of 52°F in Portrush, Northern Ireland in April 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.

52
52°F max day temperature
5
5 hours of sunshine per day
16
16 days with some rainfall
39
39°F min night temperature
14
14 hours of daylight per day
0
No heat & humidity
2.6
2.6 inches of monthly rainfall
3
3 (Moderate) UV index
46
46°F sea temperature

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The April weather guide for Northern Ireland (Portrush) 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)