27.10
tue
tue
Day
52°F
NE 19 mph
Precip.
15%
15%
Night
48°F
NE 16 mph
Precip.
29%
29%
28.10
wed
wed
Day
55°F
NE 15 mph
Precip.
20%
20%
Night
48°F
NE 6 mph
Precip.
38%
38%
29.10
thu
thu
Day
55°F
N 12 mph
Precip.
23%
23%
Night
52°F
N 14 mph
Precip.
26%
26%
30.10
fri
fri
Day
55°F
N 8 mph
Precip.
72%
72%
Night
50°F
W 2 mph
Precip.
78%
78%
31.10
sat
sat
Day
52°F
SE 6 mph
Precip.
70%
70%
Night
41°F
E 5 mph
Precip.
42%
42%
01.11
sun
sun
Day
50°F
SE 4 mph
Precip.
16%
16%
Night
39°F
SE 1 mph
Precip.
27%
27%
02.11
mon
mon
Day
50°F
NW 6 mph
Precip.
20%
20%
Night
41°F
NW 4 mph
Precip.
28%
28%
Sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 56.4°F. The highest and lowest sea temperatures during the month were 58.1°F and 54.5°F.
Sea water temperature in November, °F
Show year:
2025
2024
2023
The average sea water temperature in November of 2025 was 53.1°F. The highest and lowest sea temperatures during the month were 54.3°F and 52.2°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: 11:15
October 27, tuesday
1200
52°F
NE
19 mph
19 mph
1500
50°F
NE
16 mph
16 mph
1800
46°F
NE
16 mph
16 mph
2100
46°F
NE
15 mph
15 mph
October 28, wednesday
0000
48°F
NE
16 mph
16 mph
0300
50°F
NE
19 mph
19 mph
0600
52°F
NE
17 mph
17 mph
0900
52°F
NE
15 mph
15 mph
