Northern Ireland weather in October 2025

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

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

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

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

Q: How warm is the sea around Northern Ireland in October?

The average sea temperature around Belfast, Northern Ireland in October is 13°C.

Q: Does it rain in Northern Ireland in October?

There are usually 19 days with some rain in Belfast, Northern Ireland in October and the average monthly rainfall is 100mm.

Expect 13°C daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Northern Ireland in October. Check more long-term weather averages for Northern Ireland in October before you book your next holiday to Northern Ireland in 2025/2026.

13
13°C max day temperature
3
3 hours of sunshine per day
19
19 days with some rainfall
7
7°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
100
100 mm of monthly rainfall
2
2 (Low) UV index
13
13°C sea temperature

More about Northern Ireland

Northern Ireland by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Northern Ireland

National Trust Holidays: 25% off last minute holidays

Discount Code

Save 25% on breaks with National Trust Holidays
Discover stays acoss Devon, North Wales & more
Travel before 30th November 2024 (inclusive)

Show discount code

******UTE

Redeem National Trust Holidays discount code >>

Expires at 23:59 on Saturday 30th Nov 2024 · View all National Trust Holidays offers

The October 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 October. Select a holiday destination to see more weather parameters.

13
Belfast
12
Londonderry

All Northern Ireland destinations

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

More about the UK

How warm is it in Northern Ireland in October?

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

How sunny is it in Northern Ireland in October?

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

How warm is the sea around Northern Ireland in October?

The average sea temperature around Belfast, Northern Ireland in October is 13°C.

Does it rain in Northern Ireland in October?

There are usually 19 days with some rain in Belfast, Northern Ireland in October and the average monthly rainfall is 100mm.

Northern Ireland October sunrise & sunset times

Browse the sunrise and sunset times for Northern Ireland in October 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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec