Shoalhaven River - Regatta Island Weather Forecast
- 15
- 21
Cloudy
- 14
- 23
Cloudy
- 14
- 28
Mostly sunny
- 15
- 33
Sunny
- 18
- 35
Shower or two developing
- 19
- 33
Shower or two
- 18
- 32
Shower or two
Today 15 Dec Illawarra
Cloudy. Medium chance of showers. Light winds becoming east to southeasterly 20 to 30 km/h in the morning. Daytime maximum temperatures between 19 and 24.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Southerly 15 to 20 knots turning southeasterly during the morning.
- Seas
- 1.5 to 2 metres, decreasing to 1 metre during the morning, increasing to 1 to 1.5 metres south of Point Perpendicular during the afternoon.
- 1st Swell
- Southerly 2 to 3 metres, decreasing to 2 metres by early evening.
- Weather
- Cloudy.
- Weather Situation
- A trough and gusty wind change will continue moving north across the coastal waters, crossing the northern waters this morning and early afternoon. A ridge extends over the coastal waters in the wake of the trough. The ridge will be maintained by a high in the Great Australian Bight that will move east across southeast Australia on Tuesday and into the Tasman Sea on Wednesday.
Shoalhaven River - Regatta Island Temperature Statistics View More
December Temperature
Nowra (RAN Air Station) (16km)
Lowest 1 December, 2025
8.8 °CAverage December
20.7 °CHighest 6 December, 2025
39.5 °C
Climate (2020–Present)
Nowra (RAN Air Station) (16km)
Average Low 2020–2025
12 °CAverage 2020–2025
16.5 °CAverage High 2020–2025
22.4 °C