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.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Shoalhaven River - Regatta Island Temperature Statistics View More

December Temperature

Nowra (RAN Air Station) (16km)

  • Lowest 1 December, 2025

    8.8 °C
  • Average December

    20.7 °C
  • Highest 6 December, 2025

    39.5 °C

Climate (2020–Present)

Nowra (RAN Air Station) (16km)

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  • Average Low 2020–2025

    12 °C
  • Average 2020–2025

    16.5 °C
  • Average High 2020–2025

    22.4 °C
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