Princess Island Weather Forecast
- 12
- 18
Clear
- 10
- 23
Possible shower
- 15
- 19
Mostly sunny
- 10
- 20
Mostly sunny
- 13
- 19
Showers increasing
- 9
- 16
Shower or two. Windy
- 10
- 19
Sunny
Today 18 Sep South Coast
Mostly clear. Winds northeasterly 15 to 25 km/h becoming light in the evening.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- North to northeasterly 15 to 20 knots tending north to northwesterly in the evening. Winds reaching up to 25 knots offshore north of Port Kembla in the late evening.
- Seas
- Around 1 metre, increasing to 1.5 metres offshore later in the evening.
- 1st Swell
- Southerly 1 to 1.5 metres.
- Weather
- Mostly clear.
- Weather Situation
- In the wake of a cold front, south to southwesterly winds will tend northerly and strengthen today as a high pressure system drifts across the coastal waters. Winds will shift west to southwesterly again over the weekend as a stronger cold front moves over NSW coastal waters, with southwesterly winds persisting into early next week as a series of fronts brush the south of the state.
Princess Island Temperature Statistics View More
September Temperature
Ulladulla (10km)
Lowest 12 September, 2025
7.3 °CAverage September
16 °CHighest 16 September, 2025
27.8 °C
Climate (2020–Present)
Ulladulla (10km)
Average Low 2020–2025
13.8 °CAverage 2020–2025
17 °CAverage High 2020–2025
20.8 °C