Belfast weather live forecast

Today's maximum temperature in Belfast is expected to be 43°F. Select a day from the live weather forecast for Belfast, Northern Ireland, UK for more weather parameters.

Tuesday
16th Dec
43

37

4

0
Wednesday
17th Dec
52

39

2

0
Thursday
18th Dec
50

41

0

0
Friday
19th Dec
48

41

2

0
Saturday
20th Dec
50

41

1

0

5-day weather forecast updated at 04:00 on Monday 15th December 2025 GMT

More about Belfast

Belfast by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Northern Ireland

Fred Olsen: Top cruise offers for 2026/2027

Sale

Explore latest offers on Fred Olsen Cruises in 2026/2027
Find last minute deals or early bird discounts
Filter offers by price, destination, ship & departure point

Go to Fred Olsen deal >>

View all Fred Olsen offers

Cruise deal finder

Destination

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 16th December 2025

Expect scattered clouds in Belfast, Northern Ireland with a maximum temperature of 43°F and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the south-west.

43
°F maximum temperature
37
°F minimum temperature
scattered clouds
4
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
39
°F wind chill
9
mph wind from SW

Belfast weather for Wednesday 17th December 2025

Expect mostly cloudy with light rain in Belfast, Northern Ireland with a maximum temperature of 52°F and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 59% chance of some rain and a fresh breeze of 18 mph from the south.

52
°F maximum temperature
39
°F minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
59
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
18
mph wind from S

Belfast weather for Thursday 18th December 2025

Expect overcast with light rain in Belfast, Northern Ireland with a maximum temperature of 50°F and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 72% chance of some rain and a moderate breeze of 14 mph from the south-west.

50
°F maximum temperature
41
°F minimum temperature
overcast with light rain
0
hours of sunshine
0
UV index (None)
72
% chance of some rain
<20
mm of rainfall expected
45
°F wind chill
14
mph wind from SW

Belfast weather for Friday 19th December 2025

Expect mostly cloudy with light rain in Belfast, Northern Ireland with a maximum temperature of 48°F and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 42% chance of some rain and a moderate breeze of 14 mph from the south-west.

48
°F maximum temperature
41
°F minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
42
% chance of some rain
<2
mm of rainfall expected
41
°F wind chill
14
mph wind from SW

Belfast weather for Saturday 20th December 2025

Expect mostly cloudy with rain in Belfast, Northern Ireland with a maximum temperature of 50°F and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 55% chance of some rain and a moderate breeze of 14 mph from the south-west.