Brisbane Water - Koolewong South Boat Ramp Weather Forecast

    • 16
    • 23

    Partly cloudy

    • 15
    • 27

    Possible shower

    • 17
    • 33

    Shower or two

    • 17
    • 22

    Shower or two

    • 16
    • 22

    Cloudy

    • 15
    • 25

    Partly cloudy

    • 15
    • 29

    Sunny

Today 12 Dec Central Coast

Partly cloudy. Medium chance of showers, becoming less likely later this evening. A thunderstorm likely early this evening, possibly severe with heavy rain which may lead to flash flooding. Winds easterly 15 to 20 km/h turning northeasterly in the evening.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Northeasterly 10 to 15 knots.
Seas
Below 0.5 metres.
Weather
Partly cloudy.
Weather Situation
Northeasterly winds are being generated by a coastal trough along the north coast and a ridge of high pressure extending to the south. A cold front is forecast to cross Sydney during early Monday morning as a southerly change behind which a new ridge of high pressure is forecast to settle bringing southeasterly winds through mid week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Brisbane Water - Koolewong South Boat Ramp Temperature Statistics View More

December Temperature

Mangrove Mountain (21km)

  • Lowest 2 December, 2025

    7.3 °C

  • Average December

    21.2 °C

  • Highest 6 December, 2025

    40.3 °C

Climate (2020–Present)

Mangrove Mountain (21km)

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  • Average Low 2020–2025

    11.2 °C

  • Average 2020–2025

    16 °C

  • Average High 2020–2025

    22.8 °C
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