Cassie Rock Weather Forecast

    • 16
    • 23

    Sunny

    • 17
    • 23

    Partly cloudy

    • 19
    • 21

    Possible shower

    • 18
    • 23

    Partly cloudy

    • 19
    • 25

    Partly cloudy

    • 21
    • 27

    Shower or two

    • 21
    • 28

    Shower or two

Today 30 Dec Sydney

Mostly sunny. Light winds becoming easterly 15 to 20 km/h in the early afternoon then becoming light in the evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Southerly about 10 knots becoming east to northeasterly in the early afternoon.
Seas
Below 1 metre.
1st Swell
Southeasterly 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
Weather
Mostly sunny.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cassie Rock Temperature Statistics View More

December Temperature

Terrey Hills (10km)

  • Lowest 3 December, 2025

    11.3 °C

  • Average December

    20.9 °C

  • Highest 19 December, 2025

    40.2 °C

Climate (2020–Present)

Terrey Hills (10km)

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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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