Mosman Water Temperature

(Today) 2025

22.9°C / 73.3°F

The water will feel warm (balmy). Most people will be OK with just bathers / swimming costume at this temperature. If you intend to stay in the water for a while a thin shorty wetsuit will suffice.

Current weather

17°C / 63°F
(light intensity shower rain)
Partly cloudy
Wind
24 mph
Humidity
72%

The measurements for the water temperature in Mosman, New South Wales 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 Mosman water temperature derived from many years of historical sea surface temperature data.

Mosman average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Mosman
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 21.4 22.1 21.9 20.6 19.2 17.8 17.3 17.2 17.3 17.7 18.9 19.6
Max °C 25.2 25.4 25.2 24.7 23 21.6 21.2 20.5 19.9 20.8 22.2 24.9
Min °F 72 73.1 72.7 70.7 68.1 65.6 64.7 64.2 64.2 65.1 67.3 69.4
Max °F 75.8 76.4 76 74.8 71.9 69.4 68.6 67.5 66.8 68.2 70.6 74.7

The warmest water temperature is in February with an average around 74.7°F / 23.7°C. The coldest month is September with an average water temperature of 65.5°F / 18.6°C.

7 day tide forecast for Mosman

ThuFriSatSunMonTueWed
  • Low 5:11am
    (0.18m)
  • High 11:11am
    (1.21m)
  • Low 4:37pm
    (0.48m)
  • High 11:12pm
    (1.76m)
  • Low 6:14am
    (0.24m)
  • High 12:15pm
    (1.13m)
  • Low 5:36pm
    (0.56m)
  • High 12:11am
    (1.65m)
  • Low 7:18am
    (0.31m)
  • High 1:23pm
    (1.09m)
  • Low 6:42pm
    (0.62m)
  • High 1:14am
    (1.54m)
  • Low 8:23am
    (0.37m)
  • High 2:35pm
    (1.1m)
  • Low 7:56pm
    (0.66m)
  • High 2:22am
    (1.46m)
  • Low 9:24am
    (0.41m)
  • High 3:40pm
    (1.15m)
  • Low 9:12pm
    (0.66m)
  • High 3:27am
    (1.4m)
  • Low 10:14am
    (0.43m)
  • High 4:32pm
    (1.23m)
  • Low 10:18pm
    (0.63m)
  • High 4:23am
    (1.37m)
  • Low 10:55am
    (0.44m)
  • High 5:14pm
    (1.32m)
  • Low 11:12pm
    (0.59m)
7 day tide times for Mosman

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