Belfast weather live forecast

Tomorrow's maximum temperature in Belfast is expected to be 18°C.

Wednesday
14th May

18

12

13
Thursday
15th May

19

10

14
Friday
16th May

20

10

16
Saturday
17th May

21

12

16
Sunday
18th May

21

12

16

5-day weather forecast updated at 04:00 on Wednesday 14th May 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.

Belfast weather forecast by day

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

Belfast weather for Wednesday 14th May 2025

Expect scattered clouds in Belfast, Northern Ireland with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the east.

18
°C maximum temperature
12
°C minimum temperature
scattered clouds
13
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
18
°C wind chill
15
kph wind from E

Belfast weather for Thursday 15th May 2025

Expect clear skies in Belfast, Northern Ireland with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-east.

19
°C maximum temperature
10
°C minimum temperature
clear skies
14
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
14
kph wind from NE

Belfast weather for Friday 16th May 2025

Expect clear skies in Belfast, Northern Ireland with a maximum temperature of 20°C, maximum UV of 6 (High) and 16 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the east.

20
°C maximum temperature
10
°C minimum temperature
clear skies
16
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
12
kph wind from E

Belfast weather for Saturday 17th May 2025

Expect clear skies in Belfast, Northern Ireland with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 16 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-east.