Cassie Rock Weather Forecast

    • 17
    • 25

    Partly cloudy

    • 17
    • 29

    Mostly sunny

    • 15
    • 17

    Showers

    • 14
    • 18

    Possible shower

    • 14
    • 19

    Partly cloudy

    • 14
    • 23

    Sunny

    • 15
    • 26

    Sunny

Today 25 Sep Sydney

Partly cloudy. The chance of a thunderstorm in the afternoon and evening. Winds northeasterly 15 to 25 km/h becoming light in the evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
North to northeasterly 15 to 20 knots, reaching up to 25 knots offshore during the day.
Seas
1.5 to 2 metres.
1st Swell
Southerly below 1 metre.
Weather
Mostly sunny. The chance of a thunderstorm inshore in the afternoon and evening.
Weather Situation
A high pressure system over the Tasman Sea directs a northeasterly flow through the coastal waters. A cold front and trough will enter the Tasman Sea early Saturday, bringing a southerly change which will gradually track northward through the weekend.
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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

    16.4 °C

  • Highest 21 September, 2026

    32 °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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