Northern Ireland weather live forecast

Today's maximum temperature in Northern Ireland is expected to be 17°C. Select a day from the live weather forecast for Northern Ireland (Belfast), UK for more weather parameters.

Wednesday
20th Aug
17

12

8

5
Thursday
21st Aug
19

11

4

3
Friday
22nd Aug
19

13

3

2
Saturday
23rd Aug
19

12

4

4
Sunday
24th Aug
21

14

7

4

5-day weather forecast updated at 04:00 on Wednesday 20th August 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.

20
Londonderry
17
Belfast

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 Wednesday 20th August 2025

Expect scattered clouds in Northern Ireland with a maximum temperature of 17°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the east.

17
°C maximum temperature
12
°C minimum temperature
scattered clouds
8
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
14
kph wind from E

Northern Ireland weather for Thursday 21st August 2025

Expect broken clouds in Northern Ireland with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the west.

19
°C maximum temperature
11
°C minimum temperature
broken clouds
4
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
7
kph wind from W

Northern Ireland weather for Friday 22nd August 2025

Expect broken clouds in Northern Ireland with a maximum temperature of 19°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the north-west.

19
°C maximum temperature
13
°C minimum temperature
broken clouds
3
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
9
kph wind from NW

Northern Ireland weather for Saturday 23rd August 2025

Expect broken clouds in Northern Ireland with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.

19
°C maximum temperature
12
°C minimum temperature
broken clouds
4
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
11
kph wind from S

Northern Ireland weather for Sunday 24th August 2025

Expect broken clouds in Northern Ireland with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-east.