Cowan Creek - Castle Bay Weather Forecast

    • 14
    • 24

    Mostly sunny

    • 16
    • 34

    Sunny

    • 18
    • 23

    Sunny

    • 17
    • 38

    Partly cloudy

    • 19
    • 24

    Partly cloudy

    • 15
    • 23

    Possible shower

    • 15
    • 23

    Partly cloudy

Today 19 Oct Sydney

Mostly sunny. Winds northerly 15 to 25 km/h turning northeasterly 25 to 35 km/h in the early afternoon then decreasing to 15 to 25 km/h in the late evening.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Northeasterly 15 to 25 knots increasing to 20 to 30 knots in the early afternoon then tending north to northeasterly 15 to 25 knots in the evening.
Seas
Below 0.5 metres.
Weather
Mostly sunny.
Weather Situation
On Sunday, the winds tend gusty north to northeasterly in the afternoon and evening as the trough weakens and the high moves over the Tasman Sea. The next trough will bring a southerly change to Sydney either late Monday or early Tuesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cowan Creek - Castle Bay Temperature Statistics View More

October Temperature

Terrey Hills (9km)

  • Lowest 3 October, 2025

    8.6 °C

  • Average October

    19.6 °C

  • Highest 17 October, 2025

    31.5 °C

Climate (2020–Present)

Terrey Hills (9km)

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  • Average Low 2020–2025

    13.4 °C

  • Average 2020–2025

    16.9 °C

  • Average High 2020–2025

    21.7 °C
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