St Georges Basin Weather Forecast

    • 11
    • 20

    Morning shower or two

    • 10
    • 23

    Partly cloudy

    • 13
    • 19

    Sunny

    • 8
    • 20

    Partly cloudy

    • 11
    • 21

    Shower or two

    • 9
    • 17

    Possible shower

    • 8
    • 19

    Mostly sunny

Today 18 Sep Illawarra

Partly cloudy. Medium chance of showers along the coastal fringe, slight chance elsewhere. Light winds becoming east to northeasterly 15 to 20 km/h in the late afternoon then becoming light in the evening. Daytime maximum temperatures between 18 and 21.

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St Georges Basin Temperature Statistics View More

September Temperature

Nowra (RAN Air Station) (17km)

  • Lowest 6 September, 2025

    5.9 °C

  • Average September

    15.2 °C

  • Highest 16 September, 2025

    29.3 °C

Climate (2020–Present)

Nowra (RAN Air Station) (17km)

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  • Average Low 2020–2025

    12.1 °C

  • Average 2020–2025

    16.5 °C

  • Average High 2020–2025

    22.3 °C
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