Belfast Sea Temperature

(Today) 2023

8.8°C / 47.9°F

The water will feel cold. All but the most ardent watersports enthusiasts will be thinking of packing up for the winter. If not we'd suggest a thick 5/4mm wetsuit along with some boots and a hood.

Current weather

10°C / 50°F
(overcast clouds)
Partly cloudy
Wind
14 mph
Humidity
88%

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.

Water temp by month

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

SunMonTueWedThuFriSat
  • High 04:49am
    (3.08m)
  • Low 10:45am
    (1.02m)
  • High 05:06pm
    (3.27m)
  • Low 11:44pm
    (0.93m)
  • High 05:48am
    (3.02m)
  • Low 11:54am
    (1.16m)
  • High 06:15pm
    (3.11m)
  • Low 12:53am
    (1.09m)
  • High 06:54am
    (2.99m)
  • Low 01:13pm
    (1.22m)
  • High 07:31pm
    (3.01m)
  • Low 01:58am
    (1.16m)
  • High 08:02am
    (3.03m)
  • Low 02:25pm
    (1.18m)
  • High 08:42pm
    (3m)
  • Low 02:55am
    (1.14m)
  • High 09:02am
    (3.12m)
  • Low 03:21pm
    (1.07m)
  • High 09:38pm
    (3.03m)
  • Low 03:41am
    (1.1m)
  • High 09:51am
    (3.24m)
  • Low 04:06pm
    (0.95m)
  • High 10:21pm
    (3.08m)
  • Low 04:19am
    (1.02m)
  • High 10:30am
    (3.36m)
  • Low 04:42pm
    (0.81m)
  • High 10:56pm
    (3.12m)
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.