Belfast weather in April 2025

Q: How warm is it in Belfast in April?

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

Q: How sunny is it in Belfast in April?

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

Q: Is the sea cold around Belfast in April?

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

Q: Does it rain in Belfast in April?

There are usually 15 days with some rain in Belfast in April and the average monthly rainfall is 63mm.

Expect 11°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Belfast in April. Check more long-term weather averages for Belfast in April before you book your next holiday to Northern Ireland in 2025/2026.

11
11°C max day temperature
5
5 hours of sunshine per day
15
15 days with some rainfall
4
4°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
63
63 mm of monthly rainfall
3
3 (Moderate) UV index
8
8°C sea temperature

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The April weather guide for Northern Ireland (Belfast) 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)