Georges River - Sylvania Marina Weather Forecast

    • 24
    • 29

    Possible shower

    • 21
    • 28

    Becoming windy. Mostly sunny

    • 20
    • 28

    Mostly sunny

    • 20
    • 22

    Shower or two

    • 17
    • 22

    Partly cloudy

    • 17
    • 23

    Partly cloudy

    • 17
    • 24

    Partly cloudy

Today 22 Dec Sydney

Partly cloudy. Medium chance of showers. The chance of a thunderstorm in the morning and afternoon. Winds west to northwesterly 15 to 20 km/h shifting east to southeasterly 20 to 30 km/h in the late morning and early afternoon.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
West to northwesterly about 10 knots becoming south to southeasterly in the morning then tending east to southeasterly 15 to 20 knots in the middle of the day.
Seas
Below 0.5 metres.
Weather
Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the morning and afternoon.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Georges River - Sylvania Marina Temperature Statistics View More

December Temperature

Sydney Airport (8km)

  • Lowest 2 December, 2025

    13.4 °C

  • Average December

    23.4 °C

  • Highest 19 December, 2025

    42.6 °C

Climate (2020–Present)

Sydney Airport (8km)

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  • Average Low 2020–2025

    14.8 °C

  • Average 2020–2025

    18.7 °C

  • Average High 2020–2025

    23.4 °C
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