Georges River - Sylvania Marina Weather Forecast

    • 20
    • 24

    Possible shower

    • 19
    • 21

    Showers. Possible storm

    • 19
    • 21

    Showers

    • 18
    • 27

    Shower or two

    • 19
    • 27

    Mostly sunny

    • 20
    • 23

    Shower or two

    • 18
    • 22

    Cloudy

Today 10 Dec Sydney

Partly cloudy. Slight chance of a shower in the evening. The chance of a thunderstorm in the evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding in the outer west. Winds southerly 20 to 30 km/h turning east to southeasterly 15 to 20 km/h in the late morning then tending south to southeasterly 15 to 25 km/h in the evening.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Southerly 15 to 25 knots tending southeasterly 10 to 15 knots in the middle of the day.
Seas
Below 0.5 metres.
Weather
Cloudy. 50% chance of showers. The chance of a thunderstorm in the evening.
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  • 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

    23.2 °C

  • Highest 6 December, 2025

    39.2 °C

Climate (2020–Present)

Sydney Airport (8km)

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  • Average Low 2020–2025

    14.8 °C

  • Average 2020–2025

    18.6 °C

  • Average High 2020–2025

    23.3 °C
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