Illaroo Weather Forecast

    • 15
    • 20

    Cloudy

    • 12
    • 19

    Partly cloudy

    • 11
    • 21

    Sunny

    • 12
    • 22

    Partly cloudy

    • 11
    • 25

    Cloud clearing

    • 10
    • 28

    Sunny

    • 14
    • 28

    Shower or two

Today 25 Dec Illawarra

Cloudy. Slight chance of a shower in the north, near zero chance elsewhere. Winds south to southeasterly 20 to 30 km/h tending east to southeasterly in the middle of the day then tending south to southeasterly in the evening. Daytime maximum temperatures between 19 and 24.

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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Illaroo Temperature Statistics View More

December Temperature

Nowra (RAN Air Station) (12km)

  • Lowest 1 December, 2025

    8.8 °C

  • Average December

    21.3 °C

  • Highest 19 December, 2025

    40 °C

Climate (2020–Present)

Nowra (RAN Air Station) (12km)

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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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