Cassie Rock Weather Forecast

    • 11
    • 19

    Clear

    • 12
    • 19

    Sunny

    • 9
    • 18

    Sunny

    • 13
    • 17

    Shower or two

    • 13
    • 17

    Showers easing

    • 13
    • 17

    Showers

    • 12
    • 17

    Showers

Today 12 Aug Sydney

Clear. Winds westerly 15 to 20 km/h.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Westerly 15 to 20 knots, reaching up to 25 knots offshore.
Seas
Around 1 metre, increasing to 2 metres offshore.
1st Swell
Southerly below 1 metre.
Weather
Mostly clear.
Weather Situation
A cold front and its associated trough are forecast to cross the coastal waters today into early Thursday, with fresh westerly winds turning southwesterly in their wake. Then, a high pressure system moving over South Australia is expected to drift towards Tasmania later in the week through the weekend, directing onshore south to southeasterly winds over the coastal waters.
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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

    11.8 °C

  • Highest 3 August, 2026

    20.5 °C

Climate (2021–2026)

Terrey Hills (10km)

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  • Average Low 2021–2026

    13.5 °C

  • Average 2021–2026

    17.1 °C

  • Average High 2021–2026

    21.9 °C
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