Northern Ireland weather in June 2025

Q: How warm is it in Northern Ireland in June?

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

Q: How sunny is it in Northern Ireland in June?

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

Q: Is the sea cold around Northern Ireland in June?

The average sea temperature around Belfast, Northern Ireland in June is 11°C.

Q: Does it rain in Northern Ireland in June?

There are usually 15 days with some rain in Belfast, Northern Ireland in June and the average monthly rainfall is 68mm.

Expect 17°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Northern Ireland in June. Check more long-term weather averages for Northern Ireland in June before you book your next holiday to Northern Ireland in 2025/2026.

17
17°C max day temperature
6
6 hours of sunshine per day
15
15 days with some rainfall
9
9°C min night temperature
17
17 hours of daylight per day
0
No heat & humidity
68
68 mm of monthly rainfall
6
6 (High) UV index
11
11°C sea temperature

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The June 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.

Top Northern Ireland destinations

Below are average maximum temperatures at popular countries, regions and places in Northern Ireland in June. Select a holiday destination to see more weather parameters.

17
Belfast
16
Londonderry

All Northern Ireland destinations

Metric (°C / mm) | Imperial (°F / inches)

More about the UK

How warm is it in Northern Ireland in June?

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

How sunny is it in Northern Ireland in June?

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

Is the sea cold around Northern Ireland in June?

The average sea temperature around Belfast, Northern Ireland in June is 11°C.

Does it rain in Northern Ireland in June?

There are usually 15 days with some rain in Belfast, Northern Ireland in June and the average monthly rainfall is 68mm.

Northern Ireland June sunrise & sunset times

Browse the sunrise and sunset times for Northern Ireland in June 2025. Select a month to view Northern Ireland sunrise and sunset times for the next 12 months. The Northern Ireland sunrise and sunset times shown below are for Belfast.

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