Belfast weather live forecast

Today's maximum temperature in Belfast is expected to be 9°C. Select a day from the live weather forecast for Belfast, Northern Ireland, UK for more weather parameters.

Monday
15th Dec
9

4

0

0
Tuesday
16th Dec
6

2

6

0
Wednesday
17th Dec
11

4

1

0
Thursday
18th Dec
11

6

0

0
Friday
19th Dec
9

4

3

0

5-day weather forecast updated at 04:00 on Sunday 14th 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 Monday 15th December 2025

Expect overcast with light rain in Belfast, Northern Ireland with a maximum temperature of 9°C and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 16% chance of some rain and a light breeze of 7 kph from the west.

9
°C maximum temperature
4
°C minimum temperature
overcast with light rain
0
hours of sunshine
0
UV index (None)
16
% chance of some rain
<2
mm of rainfall expected
8
°C wind chill
7
kph wind from W

Belfast weather for Tuesday 16th December 2025

Expect scattered clouds in Belfast, Northern Ireland with a maximum temperature of 6°C and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.

6
°C maximum temperature
2
°C minimum temperature
scattered clouds
6
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
3
°C wind chill
14
kph wind from SW

Belfast weather for Wednesday 17th December 2025

Expect mostly cloudy with rain in Belfast, Northern Ireland with a maximum temperature of 11°C and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 74% chance of some rain and a moderate breeze of 27 kph from the south.

11
°C maximum temperature
4
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
0
UV index (None)
74
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
27
kph wind from S

Belfast weather for Thursday 18th December 2025

Expect mostly cloudy with rain in Belfast, Northern Ireland with a maximum temperature of 11°C and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 76% chance of some rain and a moderate breeze of 24 kph from the south-west.

11
°C maximum temperature
6
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
0
UV index (None)
76
% chance of some rain
<30
mm of rainfall expected
11
°C wind chill
24
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 24 kph from the south-west.