26.12
fri
fri
Day
41°F
SW 8 mph
Precip.
0%
0%
Night
36°F
SW 6 mph
Precip.
0%
0%
27.12
sat
sat
Day
43°F
W 13 mph
Precip.
0%
0%
Night
41°F
W 12 mph
Precip.
0%
0%
28.12
sun
sun
Day
41°F
SW 3 mph
Precip.
0%
0%
Night
32°F
E 3 mph
Precip.
0%
0%
29.12
mon
mon
Day
41°F
E 6 mph
Precip.
0%
0%
Night
36°F
S 3 mph
Precip.
0%
0%
30.12
tue
tue
Day
41°F
SE 4 mph
Precip.
0%
0%
Night
39°F
SE 10 mph
Precip.
0%
0%
31.12
wed
wed
Day
39°F
S 14 mph
Precip.
0%
0%
Night
37°F
S 12 mph
Precip.
100%
100%
01.01
thu
thu
Day
37°F
S 7 mph
Precip.
0%
0%
Night
34°F
SW 9 mph
Precip.
83%
83%
02.01
fri
fri
Day
36°F
SE 2 mph
Precip.
0%
0%
Night
28°F
NE 7 mph
Precip.
0%
0%
03.01
sat
sat
Day
41°F
NE 11 mph
Precip.
100%
100%
Night
43°F
SE 14 mph
Precip.
0%
0%
04.01
sun
sun
Day
45°F
S 12 mph
Precip.
0%
0%
Night
36°F
E 7 mph
Precip.
0%
0%
05.01
mon
mon
Day
46°F
SE 12 mph
Precip.
0%
0%
Night
43°F
E 6 mph
Precip.
0%
0%
06.01
tue
tue
Day
46°F
NE 14 mph
Precip.
78%
78%
Night
45°F
E 16 mph
Precip.
70%
70%
07.01
wed
wed
Day
45°F
E 21 mph
Precip.
100%
100%
Night
43°F
E 15 mph
Precip.
71%
71%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 49.5°F. The highest and lowest sea temperatures during the month were 52.0°F and 48.2°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 47.3°F. The highest and lowest sea temperatures during the month were 49.3°F and 45.9°F.
Air temperature in Belfast, °F
Precipitation total in Belfast, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Belfast
Belfast on a weather map
Places in United Kingdom:
Name
°F
24 Hours Forecast
Belfast
Local time: 01:41
December 26, friday
0300
39°F
W
10 mph
10 mph
0600
37°F
W
10 mph
10 mph
0900
37°F
SW
8 mph
8 mph
1200
41°F
SW
8 mph
8 mph
1500
41°F
W
7 mph
7 mph
1800
37°F
SW
7 mph
7 mph
2100
36°F
SW
6 mph
6 mph
December 27, saturday
0000
36°F
SW
6 mph
6 mph
