Cassie Rock Weather Forecast

    • 12
    • 17

    Showers increasing

    • 14
    • 18

    Showers easing

    • 13
    • 18

    Shower or two

    • 12
    • 18

    Partly cloudy

    • 11
    • 18

    Partly cloudy

    • 11
    • 18

    Mostly sunny

    • 11
    • 18

    Mostly sunny

Today 16 Jul Sydney

Partly cloudy. High chance of showers along the coastal fringe, medium chance elsewhere. Winds southwesterly 15 to 25 km/h tending southerly 25 to 35 km/h in the middle of the day then becoming light in the late evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Southerly 20 to 25 knots, reaching up to 30 knots in the late morning and early afternoon. Winds turning southeasterly 15 to 20 knots during the afternoon and evening.
Seas
1 to 2 metres, decreasing below 1.5 metres later in the evening.
1st Swell
Southerly 1.5 metres.
Weather
Cloudy. 95% chance of showers.
Weather Situation
A high pressure system near the western border will slowly move east over the coming days as a low pressure trough deepens along the northern New South Wales coast, bringing fresh to strong southerly or southeasterly winds through to the weekend, moderating along the southern coast from today. The trough will form a low pressure system over the southern Coral Sea or northern Tasman Sea during the weekend, promoting strong southeasterly winds along the northern coast.
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Cassie Rock Temperature Statistics View More

July Temperature

Terrey Hills (10km)

  • Lowest 4 July, 2026

    6 °C

  • Average July

    12.3 °C

  • Highest 2 July, 2026

    21.1 °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

    22 °C
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