Belfast Sea Temperature

(Today) 2021

11.7°C / 53°F

Current weather

7°C / 44°F
(scattered clouds)

Partly cloudy

Wind

13 mph

Humidity

85%


The measurements for the water temperature in Belfast, N Ireland are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

Monthly average water temp

Monthly average max / min water temperatures

The graph below shows the range of monthly Belfast water temperature derived from many years of historical sea surface temperature data.

Belfast average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Belfast
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 8 7.4 7.2 7.8 9.4 9.8 12 13.5 13.6 12.6 11.3 9.4
Max °C 10.3 9.3 9.2 10 11.1 14 15.4 15.2 14.9 14.3 13.3 11.8
Min °F 47.3 46 45.8 46.9 49.6 51.3 55 56.9 57 55.3 53.1 49.9
Max °F 49.6 47.9 47.8 49.1 51.3 55.5 58.4 58.6 58.3 57 55.1 52.3

The warmest water temperature is in August with an average around 57.7°F / 14.3°C. The coldest month is March with an average water temperature of 46.8°F / 8.2°C.


7 day tide forecast for Belfast

WedThuFriSatSunMonTue
  • Low 01:59am
    (0.67m)
  • High 08:16am
    (3.25m)
  • Low 02:26pm
    (1m)
  • High 08:25pm
    (3.46m)
  • Low 02:46am
    (0.53m)
  • High 09:02am
    (3.37m)
  • Low 03:13pm
    (0.82m)
  • High 09:13pm
    (3.57m)
  • Low 03:30am
    (0.45m)
  • High 09:45am
    (3.47m)
  • Low 03:58pm
    (0.67m)
  • High 10:00pm
    (3.64m)
  • Low 04:14am
    (0.43m)
  • High 10:29am
    (3.56m)
  • Low 04:45pm
    (0.55m)
  • High 10:49pm
    (3.67m)
  • Low 04:59am
    (0.47m)
  • High 11:16am
    (3.63m)
  • Low 05:33pm
    (0.47m)
  • High 11:39pm
    (3.65m)
  • Low 05:47am
    (0.56m)
  • High 12:04pm
    (3.67m)
  • Low 06:24pm
    (0.44m)
  • High 12:33am
    (3.59m)
  • Low 06:37am
    (0.7m)
  • High 12:55pm
    (3.67m)
  • Low 07:17pm
    (0.46m)
7 day tide times for Belfast

*These tide times are estimates based on the nearest accurate location (Bangor, Northern Ireland) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.