Shoalhaven River - Old Man Island Weather Forecast

    • 15
    • 35

    Partly cloudy

    • 20
    • 36

    Partly cloudy

    • 15
    • 22

    Shower or two

    • 14
    • 28

    Partly cloudy

    • 15
    • 31

    Sunny

    • 16
    • 26

    Possible shower

    • 15
    • 23

    Shower or two

Today 5 Dec Illawarra

Mostly sunny. The chance of a thunderstorm this afternoon. Winds west to northwesterly 20 to 30 km/h tending north to northwesterly 15 to 20 km/h in the evening. Daytime maximum temperatures in the low to high 30s.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northerly 15 to 25 knots.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning, then increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Northeasterly around 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing to around 1 metre during the afternoon.
Weather
Sunny.
Weather Situation
A high pressure system lies over the Tasman Sea, extending a ridge over the state. Northerly winds strengthening by the weekend, with a brief weak southerly change expected along the south coast today. Then, a cold front will cross the state during the weekend, bringing a fresh to strong southerly wind change over coastal waters in its wake.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Shoalhaven River - Old Man Island Temperature Statistics View More

December Temperature

Nowra (RAN Air Station) (18km)

  • Lowest 1 December, 2025

    8.8 °C

  • Average December

    18 °C

  • Highest 3 December, 2025

    27.2 °C

Climate (2020–Present)

Nowra (RAN Air Station) (18km)

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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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