St Helens Water Temperature

(Today) 2025

13.5°C / 56.3°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.

Current weather

9°C / 48°F
(overcast clouds)
Partly cloudy
Wind
2 mph
Humidity
90%

The measurements for the water temperature in St Helens, Tasmania 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 St Helens water temperature derived from many years of historical sea surface temperature data.

St Helens average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in St Helens
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 16 16.7 16.3 16 14 13.6 11.9 12.7 12.6 12.9 14.1 15.5
Max °C 18.9 18.7 19 18.4 17.5 16.5 15.6 14.4 14.8 15.4 16.8 18.8
Min °F 61.9 62.9 62.4 61.8 58.6 57.6 54.9 55.5 55.6 56.2 58.4 61.2
Max °F 64.8 64.9 65.1 64.2 62.1 60.5 58.6 57.2 57.8 58.7 61.1 64.5

The warmest water temperature is in February with an average around 63.9°F / 17.7°C. The coldest month is August with an average water temperature of 56.3°F / 13.5°C.

7 day tide forecast for St Helens

SatSunMonTueWedThuFri
  • High 05:14am
    (0.67m)
  • Low 11:06am
    (0.3m)
  • High 05:50pm
    (0.89m)
  • Low 12:34am
    (0.31m)
  • High 06:15am
    (0.65m)
  • Low 11:48am
    (0.33m)
  • High 06:32pm
    (0.93m)
  • Low 01:26am
    (0.25m)
  • High 07:13am
    (0.63m)
  • Low 12:31pm
    (0.35m)
  • High 07:13pm
    (0.96m)
  • Low 02:14am
    (0.19m)
  • High 08:06am
    (0.63m)
  • Low 01:15pm
    (0.36m)
  • High 07:55pm
    (1m)
  • Low 02:59am
    (0.14m)
  • High 08:55am
    (0.64m)
  • Low 01:59pm
    (0.36m)
  • High 08:37pm
    (1.02m)
  • Low 03:41am
    (0.1m)
  • High 09:41am
    (0.66m)
  • Low 02:43pm
    (0.35m)
  • High 09:19pm
    (1.04m)
  • Low 04:23am
    (0.07m)
  • High 10:25am
    (0.66m)
  • Low 03:28pm
    (0.35m)
  • High 10:00pm
    (1.06m)
7 day tide times for St Helens

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