Southampton Sea Temperature

(Today) 2025

6.6°C / 43.9°F

The water will feel very cold. For the hardcore only. The water is now dangerously cold and most people will risk hypothermia if not equipped with a thick, 6/5mm wetsuit along with boots and a hood

*Live data from Milford: 7.6°C / 45.7°F

Current weather

12°C / 53°F
(light rain)
Partly cloudy
Wind
14 mph
Humidity
94%

The measurements for the water temperature in Southampton, England 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.

*Live data may vary from satellite readings for a number of reasons. These include local factors, depth of smapling and time of day.

Water temp by month

Monthly average max / min water temperatures

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

Southampton average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Southampton
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 7.9 7.8 7.4 8.5 10.1 12 14.3 15.6 16.4 15.1 12.7 10.2
Max °C 11.4 10.4 10 11.2 12.7 14.8 16.2 17.9 18.1 17.3 15.9 13.4
Min °F 47.6 47.1 46.4 48.3 51.2 54.7 58.5 61 62.2 60.1 56.1 51.6
Max °F 51.1 49.7 49 51 53.8 57.5 60.4 63.3 63.9 62.3 59.3 54.8

The warmest water temperature is in September with an average around 63°F / 17.2°C. The coldest month is March with an average water temperature of 47.7°F / 8.7°C.

7 day tide forecast for Southampton

FriSatSunMonTueWedThu
  • High 04:28am
    (3.29m)
  • Low 09:42am
    (1.78m)
  • High 05:05pm
    (3.12m)
  • Low 10:09pm
    (1.95m)
  • High 05:40am
    (3.14m)
  • Low 11:23am
    (2.03m)
  • High 06:05pm
    (3.02m)
  • Low 12:19am
    (2.14m)
  • High 06:41am
    (3.09m)
  • Low 01:13pm
    (1.93m)
  • High 07:34pm
    (3.08m)
  • Low 01:42am
    (1.95m)
  • High 08:07am
    (3.19m)
  • Low 02:12pm
    (1.62m)
  • High 09:01pm
    (3.31m)
  • Low 02:33am
    (1.63m)
  • High 09:18am
    (3.43m)
  • Low 02:55pm
    (1.23m)
  • High 09:57pm
    (3.59m)
  • Low 03:15am
    (1.26m)
  • High 10:07am
    (3.67m)
  • Low 03:34pm
    (0.84m)
  • High 10:38pm
    (3.82m)
  • Low 03:53am
    (0.9m)
  • High 10:45am
    (3.87m)
  • Low 04:11pm
    (0.51m)
  • High 11:13pm
    (4m)
7 day tide times for Southampton

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