Belfast weather live forecast

Today's maximum temperature in Belfast is expected to be 12°C. Select a day from the live weather forecast for Belfast, Northern Ireland, UK for more weather parameters.

Thursday
14th May
12

8

7

4
Friday
15th May
12

6

8

3
Saturday
16th May
12

5

2

1
Sunday
17th May
13

7

0

4
Monday
18th May
13

7

1

4

5-day weather forecast updated at 04:00 on Thursday 14th May 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 14th May 2026

Expect sunshine and showers in Belfast, Northern Ireland with a maximum temperature of 12°C, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 63% chance of some rain and a moderate breeze of 26 kph from the north-west.

12
°C maximum temperature
8
°C minimum temperature
sunshine and showers
7
hours of sunshine
4
UV index (Moderate)
63
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
26
kph wind from NW

Belfast weather for Friday 15th May 2026

Expect scattered clouds in Belfast, Northern Ireland with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-west.

12
°C maximum temperature
6
°C minimum temperature
scattered clouds
8
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
12
°C wind chill
19
kph wind from NW

Belfast weather for Saturday 16th May 2026

Expect mostly cloudy with light rain in Belfast, Northern Ireland with a maximum temperature of 12°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 85% chance of some rain and a gentle breeze of 13 kph from the south-west.

12
°C maximum temperature
5
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
1
UV index (Low)
85
% chance of some rain
<5
mm of rainfall expected
12
°C wind chill
13
kph wind from SW

Belfast weather for Sunday 17th May 2026

Expect mostly cloudy with light rain in Belfast, Northern Ireland with a maximum temperature of 13°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 86% chance of some rain and a gentle breeze of 15 kph from the south-west.

13
°C maximum temperature
7
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
4
UV index (Moderate)
86
% chance of some rain
<5
mm of rainfall expected
13
°C wind chill
15
kph wind from SW

Belfast weather for Monday 18th May 2026

Expect mostly cloudy with light rain in Belfast, Northern Ireland with a maximum temperature of 13°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 67% chance of some rain and a gentle breeze of 17 kph from the south-east.