Mosman Bay Marina Weather Forecast

    • 11
    • 20

    Partly cloudy

    • 11
    • 21

    Cloud clearing

    • 13
    • 23

    Sunny

    • 13
    • 27

    Partly cloudy

    • 17
    • 25

    Possible shower developing

    • 11
    • 18

    Possible shower

    • 10
    • 20

    Partly cloudy

Today 11 Sep Sydney

Partly cloudy. Light winds.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Southwesterly below 10 knots becoming east to southeasterly in the middle of the day.
Seas
Below 0.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure ridge begins to strengthen from the west today. Winds will tend more northeasterly shift across Sydney Waters as the high moves over the Tasman Sea during the weekend, tending fresh on Sunday.
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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 9 September, 2026

    9.8 °C

  • Average September

    17.8 °C

  • Highest 5 September, 2026

    32.1 °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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