Flatrock Beach Weather Forecast
- 13
- 19
Showers increasing
- 12
- 17
Possible morning shower
- 10
- 17
Windy. Cloudy
- 11
- 17
Partly cloudy
- 11
- 19
Sunny
- 10
- 22
Sunny
- 11
- 24
Mostly sunny
Today 7 Sep South Coast
Partly cloudy. High chance of showers, becoming less likely in the late afternoon and evening. Winds south to southwesterly 15 to 25 km/h. Daytime maximum temperatures between 14 and 20.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Variable about 10 knots becoming southerly 15 to 25 knots in the early afternoon. Winds reaching up to 30 knots in the evening. Squalls possible with the wind change.
- Seas
- Below 1 metre, increasing to 1.5 to 2.5 metres by early evening.
- 1st Swell
- Southerly 1.5 to 2 metres, decreasing to 1.5 metres during the afternoon, then increasing to 1.5 to 2 metres later in the evening.
- Weather
- Partly cloudy. 80% chance of showers. The chance of a thunderstorm offshore north of Port Kembla in the late afternoon and evening.
- Weather Situation
- A broad high pressure ridge continues to build from the west while a trough lingers over the far northeast of the state. A weak cold front is forecast to cross the far southeast of the state this morning, bringing a gusty southerly change up the NSW coast, followed by another cold front and southerly change mid-week.
Flatrock Beach Temperature Statistics View More
September Temperature
Ulladulla (14km)
Lowest 1 September, 2026
9.9 °CAverage September
18.8 °CHighest 2 September, 2026
27.3 °C
Climate (2021–2026)
Ulladulla (14km)
Average Low 2021–2026
13.8 °CAverage 2021–2026
17.1 °CAverage High 2021–2026
20.9 °C