Cassie Rock Weather Forecast

    • 15
    • 18

    Cloudy

    • 13
    • 20

    Partly cloudy

    • 13
    • 24

    Sunny

    • 16
    • 28

    Sunny

    • 18
    • 26

    Shower or two

    • 17
    • 21

    Shower or two

    • 15
    • 21

    Possible shower

Today 28 Sep Sydney

Cloudy. Winds east to southeasterly 15 to 20 km/h becoming light in the evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Southeasterly 10 to 15 knots becoming easterly below 10 knots in the late evening.
Seas
Below 1 metre.
1st Swell
Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Cloudy.
Weather Situation
Fresh south to southeasterly winds lie over the coastal waters in the wake of a cold front. A ridge of high pressure will build over the coastal waters through the early days of the week, turning winds north to northeasterly.
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  • Temperature Forecast Bureau of Meteorology

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Cassie Rock Temperature Statistics View More

September Temperature

Terrey Hills (10km)

  • Lowest 10 September, 2026

    8.1 °C
  • Average September

    16.7 °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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