Brisbane Water - Koolewong Weather Forecast

    • 9
    • 26

    Sunny

    • 13
    • 30

    Mostly sunny

    • 15
    • 29

    Becoming cloudy

    • 14
    • 25

    Showers. Possible storm

    • 12
    • 24

    Mostly sunny

    • 13
    • 24

    Possible shower

    • 12
    • 27

    Shower or two

Today 30 Sep Central Coast

Sunny. Light winds becoming northeasterly 20 to 30 km/h in the middle of the day then tending northerly 15 to 25 km/h in the evening.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
North to northwesterly below 10 knots tending northeasterly 15 to 20 knots in the morning then tending northerly 10 to 15 knots in the evening.
Seas
Below 0.5 metres.
Weather
Sunny.
Weather Situation
A high pressure system in the Tasman Sea extends a ridge over the Sydney waters. A trough will cross the Sydney waters late on Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Brisbane Water - Koolewong Temperature Statistics View More

September Temperature

Mangrove Mountain (22km)

  • Lowest 11 September, 2026

    4.4 °C

  • Average September

    15.5 °C

  • Highest 21 September, 2026

    33.9 °C

Climate (2021–2026)

Mangrove Mountain (22km)

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  • Average Low 2021–2026

    11.4 °C

  • Average 2021–2026

    16.2 °C

  • Average High 2021–2026

    23 °C
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