Belfast weather live forecast

Today's maximum temperature in Belfast is expected to be 25°C. Select a day from the live weather forecast for Belfast, Northern Ireland, UK for more weather parameters.

Thursday
13th Aug
25

17

4

3
Friday
14th Aug
20

15

5

2
Saturday
15th Aug
19

14

4

2
Sunday
16th Aug
19

13

1

2
Monday
17th Aug
19

15

0

1

5-day weather forecast updated at 04:00 on Thursday 13th August 2026 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.

Belfast weather forecast by day

Below are the detailed weather forecasts for Belfast for the next 5 days.

Belfast weather for Thursday 13th August 2026

Expect isolated thunderstorms in Belfast, Northern Ireland with a maximum temperature of 25°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 49% chance of some rain and a light breeze of 9 kph from the south-west.

25
°C maximum temperature
17
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
3
UV index (Moderate)
49
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
9
kph wind from SW

Belfast weather for Friday 14th August 2026

Expect mostly cloudy with light rain in Belfast, Northern Ireland with a maximum temperature of 20°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 16% chance of some rain and a gentle breeze of 14 kph from the north-west.

20
°C maximum temperature
15
°C minimum temperature
mostly cloudy with light rain
5
hours of sunshine
2
UV index (Low)
16
% chance of some rain
<2
mm of rainfall expected
20
°C wind chill
14
kph wind from NW

Belfast weather for Saturday 15th August 2026

Expect broken clouds in Belfast, Northern Ireland with a maximum temperature of 19°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-west.

19
°C maximum temperature
14
°C minimum temperature
broken clouds
4
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
19
°C wind chill
12
kph wind from NW

Belfast weather for Sunday 16th August 2026

Expect mostly cloudy with light rain in Belfast, Northern Ireland with a maximum temperature of 19°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a light breeze of 10 kph from the south-west.

19
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
2
UV index (Low)
25
% chance of some rain
<2
mm of rainfall expected
19
°C wind chill
10
kph wind from SW

Belfast weather for Monday 17th August 2026

Expect mostly cloudy with rain in Belfast, Northern Ireland with a maximum temperature of 19°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 71% chance of some rain and a gentle breeze of 16 kph from the south.