Belfast weather live forecast

Today's maximum temperature in Belfast is expected to be 10°C. Select a day from the live weather forecast for Belfast, Northern Ireland, UK for more weather parameters.

Thursday
18th Dec
10

5

2

0
Friday
19th Dec
9

6

3

0
Saturday
20th Dec
10

6

2

0
Sunday
21st Dec
8

6

1

0
Monday
22nd Dec
8

6

1

0

5-day weather forecast updated at 04:00 on Thursday 18th December 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 Thursday 18th December 2025

Expect mostly cloudy with light rain in Belfast, Northern Ireland with a maximum temperature of 10°C and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 92% chance of some rain and a moderate breeze of 25 kph from the south-west.

10
°C maximum temperature
5
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
92
% chance of some rain
<5
mm of rainfall expected
7
°C wind chill
25
kph wind from SW

Belfast weather for Friday 19th December 2025

Expect broken clouds in Belfast, Northern Ireland with a maximum temperature of 9°C and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the south-west.

9
°C maximum temperature
6
°C minimum temperature
broken clouds
3
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
5
°C wind chill
26
kph wind from SW

Belfast weather for Saturday 20th December 2025

Expect mostly cloudy with light rain in Belfast, Northern Ireland with a maximum temperature of 10°C and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 70% chance of some rain and a moderate breeze of 28 kph from the south.

10
°C maximum temperature
6
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
70
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
28
kph wind from S

Belfast weather for Sunday 21st December 2025

Expect mostly cloudy with rain in Belfast, Northern Ireland with a maximum temperature of 8°C and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 63% chance of some rain and a gentle breeze of 19 kph from the east.

8
°C maximum temperature
6
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
0
UV index (None)
63
% chance of some rain
<20
mm of rainfall expected
5
°C wind chill
19
kph wind from E

Belfast weather for Monday 22nd December 2025

Expect mostly cloudy with rain in Belfast, Northern Ireland with a maximum temperature of 8°C and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 59% chance of some rain and a gentle breeze of 13 kph from the east.