Willoughby Weather Forecast

    • 19
    • 33

    Partly cloudy

    • 15
    • 19

    Windy

    • 14
    • 18

    Windy

    • 13
    • 19

    Partly cloudy

    • 15
    • 24

    Sunny

    • 16
    • 22

    Cloudy

    • 15
    • 20

    Partly cloudy

Today 29 Dec Kangaroo Island

Becoming cloudy. Winds northwest to northeasterly 15 to 25 km/h tending northwest to southwesterly in the middle of the day then tending southerly 25 to 35 km/h in the early afternoon. Daytime maximum temperatures in the low to mid 30s.

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Willoughby Temperature Statistics View More

December Temperature

Cape Willoughby (4km)

  • Lowest 2 December, 2025

    10.7 °C

  • Average December

    17.2 °C

  • Highest 18 December, 2025

    35.9 °C

Climate (2020–Present)

Cape Willoughby (4km)

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  • Average Low 2020–2025

    13.3 °C

  • Average 2020–2025

    15.3 °C

  • Average High 2020–2025

    18.4 °C
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