Average sea water temperature in September:
+57.7°F
| Minimum sea water temperature in September: | 61.5°F |
| Maximum sea water temperature in September: | 55.0°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 60.3°F. The highest and lowest sea temperatures during the month were 61.5°F and 59.2°F.
Monthly sea water temperature in Belfast, °F
Which United Kingdom resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Bournemouth | 67.3°F | 63.9°F |
| Brighton | 67.1°F | 64.1°F |
| London | 66.5°F | 62.9°F |
| Bristol | 65.2°F | 61.6°F |
| Torquay | 65.2°F | 63.0°F |
| Gibraltar | 65.2°F | 66.1°F |
| Bath | 64.9°F | 61.4°F |
| Plymouth | 64.5°F | 61.5°F |
| Liverpool | 63.1°F | 60.3°F |
| York | 62.0°F | 58.6°F |
| Belfast | 60.3°F | 58.7°F |
| Middlesbrough | 59.6°F | 56.1°F |
| Scarborough | 59.4°F | 56.3°F |
| Glasgow | 59.0°F | 57.9°F |
| Edinburgh | 58.7°F | 57.6°F |
Best time for vacation in Belfast
Belfast on a weather map
Places in United Kingdom:
Name
°F
24 Hours Forecast
Belfast
Local time: 06:00
September 16, wednesday
0900
54°F
E
11 mph
11 mph
1200
57°F
E
12 mph
12 mph
1500
57°F
NE
11 mph
11 mph
1800
57°F
NE
13 mph
13 mph
2100
55°F
NE
17 mph
17 mph
September 17, thursday
0000
55°F
NE
17 mph
17 mph
0300
52°F
E
14 mph
14 mph
0600
48°F
NE
13 mph
13 mph
