Brisbane Water - Koolewong Weather Forecast

    • 9
    • 20

    Mostly sunny

    • 8
    • 23

    Sunny

    • 10
    • 25

    Sunny

    • 14
    • 27

    Partly cloudy

    • 12
    • 21

    Sunny

    • 10
    • 22

    Cloud clearing

    • 11
    • 27

    Shower or two

Today 13 Sep Central Coast

Mostly sunny. Light winds.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
East to northeasterly about 10 knots becoming northerly in the late evening.
Seas
Below 0.5 metres.
Weather
Sunny.
Weather Situation
Southerly winds will continue to ease today before turning north to northwesterly during weekend through early next week as a strong high pressure system gradually drifts across the state and enter the Tasman Sea by Sunday. Then, a cold front and its associated trough will cross Sydney Waters between late Tuesday through early Wednesday, bringing a west to southwesterly wind change in its wake.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Brisbane Water - Koolewong Temperature Statistics View More

September Temperature

Mangrove Mountain (22km)

  • Lowest 1 September, 2025

    2.8 °C

  • Average September

    13.5 °C

  • Highest 8 September, 2025

    27.8 °C

Climate (2020–Present)

Mangrove Mountain (22km)

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  • Average Low 2020–2025

    11.3 °C

  • Average 2020–2025

    16 °C

  • Average High 2020–2025

    22.6 °C
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