Mosman Bay Marina Weather Forecast

    • 17
    • 27

    Sunny

    • 13
    • 23

    Sunny

    • 14
    • 30

    Windy. Mostly sunny

    • 13
    • 22

    Sunny

    • 12
    • 22

    Partly cloudy

    • 13
    • 20

    Partly cloudy

    • 11
    • 20

    Possible shower

Today 3 Sep Sydney

Slight chance of a shower in the early morning. Sunny day. Winds north to northwesterly 15 to 20 km/h turning westerly 25 to 35 km/h in the morning then decreasing to 15 to 20 km/h in the late afternoon.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Northwesterly 10 to 15 knots tending westerly in the morning.
Seas
Below 0.5 metres.
Weather
Sunny.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mosman Bay Marina Temperature Statistics View More

September Temperature

Sydney (Observatory Hill) (3km)

  • Lowest 1 September, 2026

    10.6 °C

  • Average September

    18.9 °C

  • Highest 1 September, 2026

    23.5 °C

Climate (2021–2026)

Sydney (Observatory Hill) (3km)

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  • Average Low 2021–2026

    14.9 °C

  • Average 2021–2026

    18.5 °C

  • Average High 2021–2026

    23.6 °C
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