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.

Tuesday
17th Mar
12

10

2

1
Wednesday
18th Mar
12

8

0

1
Thursday
19th Mar
13

6

8

2
Friday
20th Mar
13

6

1

2
Saturday
21st Mar
11

4

0

2

5-day weather forecast updated at 04:00 on Tuesday 17th March 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 Tuesday 17th March 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 0-2 mm of rainfall expected with 56% chance of some rain and a moderate breeze of 28 kph from the south.

12
°C maximum temperature
10
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
1
UV index (Low)
56
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
28
kph wind from S

Belfast weather for Wednesday 18th March 2026

Expect overcast skies in Belfast, Northern Ireland with a maximum temperature of 12°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north.

12
°C maximum temperature
8
°C minimum temperature
overcast skies
0
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
12
°C wind chill
8
kph wind from N

Belfast weather for Thursday 19th March 2026

Expect broken clouds in Belfast, Northern Ireland with a maximum temperature of 13°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north.

13
°C maximum temperature
6
°C minimum temperature
broken clouds
8
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
10
kph wind from N

Belfast weather for Friday 20th March 2026

Expect fog in low lying areas in Belfast, Northern Ireland with a maximum temperature of 13°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the south.

13
°C maximum temperature
6
°C minimum temperature
fog in low lying areas
1
hour of sunshine
2
UV index (Low)
0
mm of rainfall expected
13
°C wind chill
6
kph wind from S

Belfast weather for Saturday 21st March 2026

Expect fog in low lying areas in Belfast, Northern Ireland with a maximum temperature of 11°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the south-east.