Shoalhaven River - Regatta Island Weather Forecast

    • 11
    • 30

    Shower or two. Windy

    • 12
    • 23

    Mostly sunny

    • 9
    • 21

    Shower or two

    • 9
    • 20

    Partly cloudy

    • 8
    • 20

    Shower or two

    • 8
    • 18

    Mostly sunny

    • 7
    • 21

    Sunny

Today 5 Sep Illawarra

Partly cloudy. Medium chance of showers, most likely in the afternoon and evening. Damaging winds possible. Winds north to northwesterly 25 to 40 km/h tending west to northwesterly 35 to 55 km/h in the early afternoon. Daytime maximum temperatures 24 to 30.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northerly 15 to 25 knots turning west to northwesterly in the late afternoon. Winds reaching up to 30 knots offshore south of Port Kembla in the late evening.
Seas
Around 1 metre, increasing to 1 to 2 metres around midday.
1st Swell
Southerly around 1 metre.
Weather
Mostly sunny day. The chance of a thunderstorm offshore in the evening.
Weather Situation
North to northwesterly winds over Coastal Waters ahead of a vigorous cold front crossing the waters late today into Sunday. Winds turning westerly in behind the front before tending southwesterly to southerly as a high pressure ridge begins to form over the NSW coast. The ridge will persist into the new week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Shoalhaven River - Regatta Island Temperature Statistics View More

September Temperature

Nowra (RAN Air Station) (16km)

  • Lowest 1 September, 2026

    8.1 °C

  • Average September

    17.6 °C

  • Highest 2 September, 2026

    26.1 °C

Climate (2021–2026)

Nowra (RAN Air Station) (16km)

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  • Average Low 2021–2026

    12.1 °C

  • Average 2021–2026

    16.6 °C

  • Average High 2021–2026

    22.5 °C
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