Georges River - Sylvania Marina Weather Forecast

    • 20
    • 21

    Showers. Possible storm

    • 20
    • 22

    Rain. Windy

    • 20
    • 23

    Showers

    • 20
    • 23

    Shower or two

    • 19
    • 22

    Shower or two

    • 19
    • 25

    Partly cloudy

Today 17 Jan Sydney

Cloudy. Very high chance of rain. The chance of a thunderstorm, possibly severe with damaging winds and heavy rain which may lead to flash flooding in the afternoon and evening. Winds southwesterly 15 to 25 km/h turning southerly 25 to 40 km/h early in the morning.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
South to southeasterly 15 to 20 knots increasing to 20 to 30 knots from later this morning.
Seas
Below 0.5 metres.
Weather
Cloudy. 90% chance of showers. The chance of a thunderstorm during this afternoon and evening.
Weather Situation
Fresh to strong southeasterly winds over Sydney Waters in the wake of a trough and low moving off the south coast. Then, a high pressure system will move into the south Tasman Sea, maintaining fresh to strong southeasterly winds over Sydney Waters.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Georges River - Sylvania Marina Temperature Statistics View More

January Temperature

Sydney Airport (8km)

  • Lowest 2 January, 2026

    17.2 °C

  • Average January

    23.4 °C

  • Highest 10 January, 2026

    42.7 °C

Climate (2021–Present)

Sydney Airport (8km)

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

  • Average Low 2021–2026

    14.8 °C

  • Average 2021–2026

    18.7 °C

  • Average High 2021–2026

    23.4 °C
Get WillyWeather+ to remove ads