Cassie Rock Weather Forecast
- 13
- 16
Possible shower
- 11
- 16
Shower or two
- 10
- 17
Partly cloudy
- 12
- 16
Possible shower
- 10
- 18
Sunny
- 11
- 19
Mostly sunny
- 11
- 16
Shower or two
Today 9 Jul Sydney
Partly cloudy. Medium chance of showers. Winds southerly 15 to 20 km/h becoming light in the late afternoon.
Sydney Coastal Waters
Broken Bay to Port Hacking- Wind
- South to southeasterly about 10 knots.
- Seas
- Below 1 metre.
- 1st Swell
- Southeasterly 2 to 2.5 metres.
- Weather
- Partly cloudy. 80% chance of showers.
- Weather Situation
- A strong high pressure system in the Tasman Sea maintains a ridge over the southern half of the coast while a weak trough develops off the northern half of the coast. Winds will gradually ease before turning northerly and freshening from Saturday as the ridge extends over the northern coastal waters. Then, a cold front and trough crosses the coastal waters later in the weekend, bringing fresh westerly winds in it's wake.
Cassie Rock Temperature Statistics View More
July Temperature
Terrey Hills (10km)
Lowest 4 July, 2026
6 °CAverage July
12.9 °CHighest 2 July, 2026
21.1 °C
Climate (2021–2026)
Terrey Hills (10km)
Average Low 2021–2026
13.5 °CAverage 2021–2026
17.1 °CAverage High 2021–2026
21.9 °C