Cassie Rock Weather Forecast

    • 13
    • 20

    Partly cloudy

    • 13
    • 24

    Sunny

    • 16
    • 28

    Sunny

    • 18
    • 26

    Shower or two developing

    • 16
    • 21

    Showers

    • 14
    • 21

    Shower or two

    • 14
    • 22

    Partly cloudy

Today 29 Sep Sydney

Mostly sunny. Winds northeasterly 15 to 25 km/h tending northerly 15 to 20 km/h in the late evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Northeasterly 15 to 20 knots turning northerly in the late evening.
Seas
Below 0.5 metres, increasing to around 1 metre during the afternoon.
1st Swell
Southerly 1.5 metres.
Weather
Mostly sunny.
Weather Situation
A high pressure system in the Tasman Sea directs north to northeasterly winds over the coast. A trough is then forecast to cross the southern and central parts of the coast late Thursday into Friday, with a southerly wind change in its wake.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cassie Rock Temperature Statistics View More

September Temperature

Terrey Hills (10km)

  • Lowest 10 September, 2026

    8.1 °C

  • Average September

    16.5 °C

  • Highest 26 September, 2026

    32.3 °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

    22 °C
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