Garden Island Weather Forecast

    • 6
    • 18

    Sunny

    • 6
    • 19

    Mostly sunny

    • 7
    • 20

    Mostly sunny

    • 10
    • 17

    Possible shower

    • 5
    • 16

    Sunny

    • 6
    • 18

    Sunny

    • 7
    • 17

    Mostly sunny

Today 20 Jul Illawarra

Areas of frost about higher ground in the early morning. Patchy morning fog. Sunny afternoon. Light winds becoming northerly 15 to 20 km/h in the middle of the day then becoming light in the early afternoon. Overnight temperatures falling to between 2 and 7 with daytime temperatures reaching between 16 and 19.

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  • Temperature Forecast Bureau of Meteorology

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Garden Island Temperature Statistics View More

July Temperature

Nowra (RAN Air Station) (18km)

  • Lowest 12 July, 2026

    5.1 °C

  • Average July

    12 °C

  • Highest 2 July, 2026

    20.6 °C

Climate (2021–2026)

Nowra (RAN Air Station) (18km)

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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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