Brisbane Water - Koolewong North Boat Ramp Weather Forecast

    • 17
    • 30

    Late shower or two

    • 12
    • 19

    Shower or two

    • 13
    • 22

    Shower or two

    • 13
    • 24

    Mostly sunny

    • 12
    • 27

    Sunny

    • 13
    • 29

    Possible late shower

    • 13
    • 21

    Shower or two

Today 21 Sep Central Coast

Sunny morning. Medium chance of showers in the late afternoon and evening. Winds northwesterly 15 to 25 km/h shifting southerly 25 to 40 km/h in the middle of the day.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Northwesterly 10 to 15 knots shifting southerly 15 to 25 knots in the middle of the day. Winds may reach up to 30 knots at times.
Seas
Below 0.5 metres.
Weather
Sunny morning. 50% chance of showers in the late afternoon and evening.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Brisbane Water - Koolewong North Boat Ramp Temperature Statistics View More

September Temperature

Mangrove Mountain (21km)

  • Lowest 11 September, 2026

    4.4 °C

  • Average September

    15.1 °C

  • Highest 5 September, 2026

    30.7 °C

Climate (2021–2026)

Mangrove Mountain (21km)

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  • Average Low 2021–2026

    11.3 °C

  • Average 2021–2026

    16.2 °C

  • Average High 2021–2026

    23 °C
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