Cowan Creek - Castle Bay Weather Forecast

    • 16
    • 24

    Possible shower developing

    • 16
    • 18

    Showers

    • 16
    • 20

    Showers increasing

    • 17
    • 25

    Showers. Storm developing

    • 16
    • 23

    Shower or two

    • 16
    • 27

    Possible shower

    • 21
    • 30

    Shower or two

Today 20 Nov Sydney

Partly cloudy. The chance of smoke haze in the early morning. Medium chance of showers in the afternoon and evening. The chance of a thunderstorm in the afternoon and early evening. Winds south to southeasterly 15 to 20 km/h tending east to southeasterly 20 to 30 km/h in the morning then tending south to southeasterly 25 to 35 km/h in the early afternoon.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
West to southwesterly below 10 knots tending south to southwesterly 10 to 15 knots in the early morning then tending south to southeasterly 15 to 20 knots in the morning.
Seas
Around 1 metre, increasing to 1 to 1.5 metres around midday.
Weather
Partly cloudy. The chance of a thunderstorm late this afternoon and evening.
Weather Situation
In the wake of a trough brushing along the southern and central coasts, a south to southeasterly wind change has followed in its wake. The trough is expected stall about Hunter or Mid North Coast on Friday. Winds tending east to northeasterly again over the weekend as another high moves into the Tasman Sea and a trough lingers about the coast.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cowan Creek - Castle Bay Temperature Statistics View More

November Temperature

Terrey Hills (9km)

  • Lowest 12 November, 2025

    8.9 °C

  • Average November

    19 °C

  • Highest 8 November, 2025

    33.3 °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

    21.8 °C
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