Cassie Rock Weather Forecast

    • 18
    • 21

    Shower or two

    • 17
    • 20

    Showers

    • 15
    • 20

    Showers

    • 16
    • 21

    Shower or two

    • 15
    • 21

    Shower or two

    • 16
    • 21

    Shower or two

    • 17
    • 22

    Showers

Today 12 May Sydney

Partly cloudy. Medium chance of showers. Winds southeasterly 20 to 30 km/h turning southerly 15 to 25 km/h in the evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Southeasterly 15 to 20 knots.
Seas
1 to 1.5 metres.
1st Swell
Southerly 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A strong high pressure system entering the southwestern Tasman Sea will slowly drift east towards New Zealand over the next several days while directing onshore easterly airstream over the coastal waters of New South Wales. Little change to this pattern is expected through the week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cassie Rock Temperature Statistics View More

May Temperature

Terrey Hills (10km)

  • Lowest 8 May, 2026

    6.5 °C

  • Average May

    16.1 °C

  • Highest 3 May, 2026

    23.7 °C

Climate (2021–Present)

Terrey Hills (10km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    13.4 °C

  • Average 2021–2026

    17 °C

  • Average High 2021–2026

    21.9 °C
Get WillyWeather+ to remove ads