Cassie Rock Weather Forecast
- 10
- 19
Sunny
- 9
- 20
Sunny
- 12
- 19
Sunny
- 8
- 16
Sunny
- 7
- 19
Sunny
- 10
- 17
Partly cloudy
- 10
- 19
Sunny
Today 21 Jul Sydney
Mostly sunny. Patchy fog in the outer west in the late morning. Light winds becoming northeasterly 15 to 20 km/h in the late afternoon then becoming light in the evening.
Sydney Coastal Waters
Broken Bay to Port Hacking- Wind
- North to northwesterly 10 to 15 knots tending north to northeasterly in the early afternoon.
- Seas
- Below 1 metre.
- 1st Swell
- East to northeasterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
- Weather
- Partly cloudy.
- Weather Situation
- South to southeasterly winds along the north coast are gradually easing as a trough over the Coral Sea weakens. Meanwhile, winds over the southern and central parts of the coast are turning northerly as a strong high pressure system over the Tasman Sea extends a ridge across much of the state. Then, a cold front crossing the state mid to late this week will bring a fresh to strong southwesterly wind change in its wake.
Cassie Rock Temperature Statistics View More
July Temperature
Terrey Hills (10km)
Lowest 4 July, 2026
6 °CAverage July
12.5 °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
22 °C