Current Sea Water Temperature:
+53.6°F
| Maximum Sea Water Temperature in November: | 56.8°F |
| Minimum Sea Water Temperature in November: | 50.4°F |
| Average water temperature in November: | 53.7°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| November 11 | 53.6°F | November 06 | 53.0°F |
| November 10 | 53.6°F | November 05 | 53.0°F |
| November 09 | 53.4°F | November 04 | 53.4°F |
| November 08 | 53.4°F | November 03 | 53.0°F |
| November 07 | 53.4°F | November 02 | 53.6°F |
When is the Warmest Sea for Belfast?
According to our data for the last three years for Belfast the highest average sea water temperature was in August, September and July.
Average Water Temperature by Month, °F
Sea Water Temperature in August
The average sea surface temperature in August 2026 for Belfast was 62.6°F. The maximum and minimum values were 61.0°F and 64.4°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2026 for Belfast was 60.7°F. The maximum and minimum values were 58.6°F and 62.8°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2026 for Belfast was 62.1°F. The maximum and minimum values were 56.6°F and 65.2°F respectively.
United Kingdom Resorts:
NAME
F°
| Bath | ![]() |
+46 |
| Belfast | ![]() |
+46 |
| Bournemouth | ![]() |
+48 |
| Brighton | ![]() |
+50 |
| Bristol | ![]() |
+46 |
| Edinburgh | ![]() |
+40 |
| Gibraltar | ![]() |
+64 |
| Glasgow | ![]() |
+40 |
| Liverpool | ![]() |
+48 |
| London | ![]() |
+48 |
| Middlesbrough | ![]() |
+46 |
| Plymouth | ![]() |
+50 |
| Scarborough | ![]() |
+48 |
| Torquay | ![]() |
+44 |
| York | ![]() |
+48 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Belfast
Local time: 11:26
11 nov, wednesday
| 1200 | ![]() |
46°F | S 6 mph |
| 1500 | ![]() |
46°F | S 6 mph |
| 1800 | ![]() |
38°F | SE 6 mph |
| 2100 | ![]() |
34°F | SE 5 mph |
12 nov, thursday
| 0000 | ![]() |
40°F | S 9 mph |
| 0300 | ![]() |
40°F | S 12 mph |
| 0600 | ![]() |
34°F | S 6 mph |
| 0900 | ![]() |
38°F | SE 7 mph |


































