Cassie Rock Weather Forecast
- 11
- 17
Sunny
- 10
- 18
Partly cloudy
- 13
- 20
Possible shower
- 11
- 17
Mostly sunny
- 9
- 17
Mostly sunny
- 11
- 17
Sunny
- 10
- 17
Mostly sunny
Today 4 Jul Sydney
Sunny. Winds west to southwesterly 15 to 20 km/h becoming light in the middle of the day.
Sydney Coastal Waters
Broken Bay to Port Hacking- Wind
- Southwesterly 15 to 25 knots becoming variable about 10 knots in the evening. Winds may reach up to 30 knots at times.
- Seas
- 1.5 to 2.5 metres, decreasing below 1.5 metres during the afternoon, then decreasing below 1 metre by early evening.
- 1st Swell
- Southerly 2.5 to 3 metres.
- Weather
- Partly cloudy. 60% chance of showers offshore, near zero chance elsewhere. The chance of a thunderstorm offshore in the morning and afternoon.
- Caution
- Large and powerful surf conditions are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.
- Weather Situation
- A complex low pressure system is gradually moving away over the Tasman Sea, however its presence still sees strong winds and large powerful surf into this evening. Winds and surf conditions are forecast to ease gradually later in the week as the system moves further offshore and it is followed by a large high pressure ridge moving across the state. During the weekend a weakening cold front and trough are expected to cross the state. This will be followed by a stronger cold front mid-week bringing a return to gusty winter westerlies.
Cassie Rock Temperature Statistics View More
July Temperature
Terrey Hills (10km)
Lowest 2 July, 2025
9 °CAverage July
12 °CHighest 2 July, 2025
15.3 °C
Climate (2020–Present)
Terrey Hills (10km)
Average Low 2020–2025
13.4 °CAverage 2020–2025
16.9 °CAverage High 2020–2025
21.7 °C