Cassie Rock Weather Forecast

    • 12
    • 21

    Sunny

    • 12
    • 19

    Possible shower

    • 13
    • 21

    Sunny

    • 15
    • 21

    Showers

    • 15
    • 20

    Showers

    • 14
    • 19

    Partly cloudy

    • 12
    • 20

    Mostly sunny

Today 22 Aug Sydney

Mostly sunny. Patchy fog this morning, mainly in the west. Slight chance of a shower along the coastal fringe later tonight. Near zero chance of rain elsewhere. Light winds becoming westerly 15 to 20 km/h in the morning then becoming light in the early afternoon.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Westerly 10 to 15 knots becoming variable about 10 knots in the early afternoon then becoming southeasterly 10 to 15 knots in the late afternoon.
Seas
Around 1 metre.
1st Swell
Southerly below 1 metre.
Weather
Sunny.
Weather Situation
Winds are forecast to generally shift more westerly from today as a trough and cold front brushes the south. Then, another high pressure system is forecast to move into the Tasman Sea later into the weekend, gradually backing the winds north to northeasterly by Sunday. 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

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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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