Mosman Bay Weather Forecast

    • 14
    • 23

    Partly cloudy

    • 11
    • 23

    Sunny

    • 11
    • 20

    Possible shower

    • 12
    • 22

    Sunny

    • 13
    • 22

    Showers

    • 14
    • 21

    Shower or two

    • 12
    • 20

    Partly cloudy

Today 21 Aug Sydney

Partly cloudy. Slight chance of a shower in the late morning and afternoon. Winds north to northwesterly 15 to 20 km/h tending west to northwesterly in the middle of the day then becoming light in the early afternoon.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Northwesterly 10 to 15 knots becoming variable about 10 knots in the early afternoon.
Seas
Below 0.5 metres.
Weather
Partly cloudy.
Weather Situation
Winds are forecast to generally shift westerly from today as a series of cold fronts brush the south. Then, another high pressure system is forecast to move into the Tasman Sea later into the weekend, turning the winds north to northeasterly by Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mosman Bay Temperature Statistics View More

August Temperature

Sydney (Observatory Hill) (3km)

  • Lowest 5 August, 2026

    7.2 °C

  • Average August

    13.7 °C

  • Highest 3 August, 2026

    22.2 °C

Climate (2021–2026)

Sydney (Observatory Hill) (3km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    14.9 °C

  • Average 2021–2026

    18.4 °C

  • Average High 2021–2026

    23.6 °C
Get WillyWeather+ to remove ads