Northern Ireland weather live forecast

Today's maximum temperature in Northern Ireland is expected to be 13°C. Select a day from the live weather forecast for Northern Ireland (Belfast), UK for more weather parameters.

Sunday
21st Sep
13

8

7

2
Monday
22nd Sep
14

7

7

2
Tuesday
23rd Sep
14

6

6

3
Wednesday
24th Sep
15

8

6

1
Thursday
25th Sep
16

10

7

3

5-day weather forecast updated at 04:00 on Sunday 21st September 2025 GMT

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The 5-day weather forecast for Northern Ireland (Belfast) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Top Northern Ireland destinations

Below are temperatures expected today at popular countries, regions and places in Northern Ireland. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.

13
Belfast
12
Londonderry

All Northern Ireland destinations

Northern Ireland weather forecast by day

Below are the detailed weather forecasts for Northern Ireland for the next 5 days. The forecasts shown are for Belfast and may not represent the whole of Northern Ireland. Browse more destinations in Northern Ireland to view more weather forecasts.

Northern Ireland weather for Sunday 21st September 2025

Expect sunshine and showers in Northern Ireland with a maximum temperature of 13°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a moderate breeze of 20 kph from the north.

13
°C maximum temperature
8
°C minimum temperature
sunshine and showers
7
hours of sunshine
2
UV index (Low)
25
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
20
kph wind from N

Northern Ireland weather for Monday 22nd September 2025

Expect scattered clouds in Northern Ireland with a maximum temperature of 14°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north-west.

14
°C maximum temperature
7
°C minimum temperature
scattered clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
14
°C wind chill
10
kph wind from NW

Northern Ireland weather for Tuesday 23rd September 2025

Expect scattered clouds in Northern Ireland with a maximum temperature of 14°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south.

14
°C maximum temperature
6
°C minimum temperature
scattered clouds
6
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
8
kph wind from S

Northern Ireland weather for Wednesday 24th September 2025

Expect scattered clouds in Northern Ireland with a maximum temperature of 15°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south.

15
°C maximum temperature
8
°C minimum temperature
scattered clouds
6
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
15
kph wind from S

Northern Ireland weather for Thursday 25th September 2025

Expect scattered clouds in Northern Ireland with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south.