Northern Ireland weather live forecast

Today's maximum temperature in Northern Ireland is expected to be 18°C. Select a day from the live weather forecast for Northern Ireland (Belfast), UK for more weather parameters.

Sunday
23rd Aug
18

11

5

3
Monday
24th Aug
19

11

3

4
Tuesday
25th Aug
18

14

1

2
Wednesday
26th Aug
20

16

3

3
Thursday
27th Aug
21

16

3

4

5-day weather forecast updated at 04:00 on Saturday 22nd August 2026 GMT

More about Northern Ireland

Northern Ireland by month

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

Recommended for Northern Ireland

Fred Olsen: Top cruise offers for 2026/2027

Sale

Explore latest offers on Fred Olsen Cruises in 2026/2027
Find last minute deals or early bird discounts
Filter offers by price, destination, ship & departure point

Go to Fred Olsen deal >>

View all Fred Olsen offers

Cruise deal finder

Destination

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.

18
Belfast
18
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 23rd August 2026

Expect broken clouds in Northern Ireland with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the west.

18
°C maximum temperature
11
°C minimum temperature
broken clouds
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
18
°C wind chill
7
kph wind from W

Northern Ireland weather for Monday 24th August 2026

Expect broken clouds in Northern Ireland with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-east.

19
°C maximum temperature
11
°C minimum temperature
broken clouds
3
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
14
kph wind from SE

Northern Ireland weather for Tuesday 25th August 2026

Expect mostly cloudy with light rain in Northern Ireland with a maximum temperature of 18°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 41% chance of some rain and a moderate breeze of 20 kph from the east.

18
°C maximum temperature
14
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
2
UV index (Low)
41
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
20
kph wind from E

Northern Ireland weather for Wednesday 26th August 2026

Expect mostly cloudy with light rain in Northern Ireland with a maximum temperature of 20°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 62% chance of some rain and a gentle breeze of 18 kph from the south-east.

20
°C maximum temperature
16
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
3
UV index (Moderate)
62
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
18
kph wind from SE

Northern Ireland weather for Thursday 27th August 2026

Expect isolated thunderstorms in Northern Ireland with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 84% chance of some rain and a gentle breeze of 14 kph from the north-east.