Cassie Rock Weather Forecast

    • 12
    • 18

    Shower or two

    • 13
    • 21

    Sunny

    • 15
    • 22

    Showers increasing

    • 15
    • 19

    Showers

    • 14
    • 18

    Partly cloudy

    • 12
    • 19

    Partly cloudy

    • 13
    • 19

    Partly cloudy

Today 23 Aug Sydney

Partly cloudy. Medium chance of showers, becoming less likely late this afternoon and evening. Light winds becoming northeasterly 15 to 20 km/h in the early afternoon then becoming light in the evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Easterly 10 to 15 knots tending northeasterly in the late afternoon.
Seas
Below 1 metre.
1st Swell
Southerly 1.5 to 2 metres, decreasing to 1.5 metres by early evening.
Weather
Partly cloudy.
Weather Situation
A high pressure system is forecast to move into the Tasman Sea later on Sunday. with winds tending north to northeasterly. Winds are forecast to freshen during early next week as the next front approaches the coastal waters, crossing by mid next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cassie Rock Temperature Statistics View More

August Temperature

Terrey Hills (10km)

  • Lowest 5 August, 2026

    4.6 °C

  • Average August

    12.6 °C

  • Highest 20 August, 2026

    22.4 °C

Climate (2021–2026)

Terrey Hills (10km)

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  • Average Low 2021–2026

    13.6 °C

  • Average 2021–2026

    17.1 °C

  • Average High 2021–2026

    21.9 °C
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