Cowan Creek - Castle Bay Weather Forecast

    • 19
    • 26

    Shower or two

    • 19
    • 25

    Showers. Storm developing

    • 18
    • 27

    Shower or two. Becoming windy

    • 18
    • 22

    Showers

    • 17
    • 24

    Showers

    • 17
    • 23

    Showers

    • 17
    • 23

    Shower or two

Today 14 Jan Sydney

Partly cloudy. Medium chance of showers, most likely in the late afternoon and evening. The chance of a thunderstorm in the west. Winds northeasterly 25 to 35 km/h.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Northeasterly about 10 knots increasing to 15 to 20 knots in the morning.
Seas
Below 0.5 metres.
Weather
Partly cloudy.
Weather Situation
A weak ridge lies over the New South Wales coast, maintaining east to northeasterly winds over Sydney Waters. Winds will increase fresh to strong on Thursday, before a trough enters the south coast and develops into a low pressure system on Friday, bringing fresh to strong southeasterly winds over Sydney Waters in its wake.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cowan Creek - Castle Bay Temperature Statistics View More

January Temperature

Terrey Hills (9km)

  • Lowest 12 January, 2026

    15.5 °C

  • Average January

    21.7 °C

  • Highest 10 January, 2026

    40.5 °C

Climate (2021–Present)

Terrey Hills (9km)

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  • Average Low 2021–2026

    13.4 °C

  • Average 2021–2026

    16.9 °C

  • Average High 2021–2026

    21.8 °C
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