Brisbane Water - Koolewong North Boat Ramp Weather Forecast

    • 13
    • 24

    Partly cloudy

    • 12
    • 28

    Mostly sunny

    • 15
    • 31

    Mostly sunny

    • 14
    • 22

    Showers increasing

    • 12
    • 20

    Shower or two

    • 12
    • 21

    Possible shower

    • 9
    • 23

    Mostly sunny

Today 24 Sep Central Coast

Partly cloudy. Slight chance of a shower in the late morning and afternoon. Winds northeasterly 25 to 35 km/h.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
North to northwesterly below 10 knots tending northeasterly 15 to 25 knots in the morning.
Seas
Below 0.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system over the Tasman Sea directs an east to northeasterly flow through the Sydney Waters. Winds will freshen and tend more north to northeasterly on Thursday and Friday as the high slips further to the east. A cold front and trough will then enter the Tasman Sea during the weekend, bringing a southerly change that will pass through the Sydney Waters late on Saturday.
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

    15.2 °C

  • Highest 21 September, 2026

    33.9 °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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