Isles of Scilly Sea Temperature

(Today) 2024

12.2°C / 54°F

The water will feel cool (fresh). Probably too cold for all but seasoned swimmers. We'd recommend a 4mm or 5mm wetsuit if you want to stay in the water.

*Live data from St Mary's Sound: 12.2°C / 54°F

Current weather

12°C / 53°F
(overcast clouds)
Partly cloudy
Wind
12 mph
Humidity
88%

The measurements for the water temperature in Isles of Scilly, 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 Isles of Scilly water temperature derived from many years of historical sea surface temperature data.

Isles of Scilly average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Isles of Scilly
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 9.9 9.2 8.7 9.2 10.9 12 13.6 15.6 15.3 13.6 12 10.8
Max °C 11.6 11.5 11.3 12.5 13.5 16.4 19.3 18.9 18.6 16.8 14.6 12.9
Min °F 50.5 49.4 48.7 49.8 52.7 55.4 58.7 61.4 60.8 57.8 54.6 52.2
Max °F 52.2 51.7 51.3 53.1 55.3 59.8 64.4 64.7 64.1 61 57.2 54.3

The warmest water temperature is in August with an average around 63°F / 17.2°C. The coldest month is March with an average water temperature of 50°F / 10.0°C.

7 day tide forecast for Isles of Scilly

SunMonTueWedThuFriSat
  • High 4:07am
    (5.6m)
  • Low 10:37am
    (0.91m)
  • High 4:32pm
    (5.55m)
  • Low 10:56pm
    (0.99m)
  • High 4:53am
    (5.67m)
  • Low 11:25am
    (0.9m)
  • High 5:18pm
    (5.51m)
  • Low 11:41pm
    (1.04m)
  • High 5:38am
    (5.66m)
  • Low 12:11pm
    (0.97m)
  • High 6:03pm
    (5.4m)
  • Low 12:25am
    (1.16m)
  • High 6:22am
    (5.56m)
  • Low 12:55pm
    (1.12m)
  • High 6:47pm
    (5.23m)
  • Low 1:07am
    (1.32m)
  • High 7:05am
    (5.4m)
  • Low 1:38pm
    (1.31m)
  • High 7:30pm
    (5.01m)
  • Low 1:48am
    (1.52m)
  • High 7:48am
    (5.17m)
  • Low 2:22pm
    (1.54m)
  • High 8:13pm
    (4.78m)
  • Low 2:30am
    (1.73m)
  • High 8:32am
    (4.93m)
  • Low 3:06pm
    (1.76m)
  • High 8:59pm
    (4.55m)
7 day tide times for Isles of Scilly

*These tide times are estimates based on the nearest accurate location (St. Mary's, Isles of Scilly, 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.