Willoughby Weather Forecast

    • 10
    • 15

    Sunny

    • 11
    • 18

    Partly cloudy

    • 14
    • 22

    Partly cloudy

    • 14
    • 19

    Shower

    • 13
    • 18

    Cloudy

    • 14
    • 21

    Partly cloudy

    • 16
    • 23

    Shower

Today 22 Sep Kangaroo Island

Mostly sunny. Winds east to southeasterly 15 to 20 km/h tending east to northeasterly before dawn. Overnight temperatures falling to between 5 and 8 with daytime temperatures reaching around 17.

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  • Temperature Forecast Bureau of Meteorology

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Willoughby Temperature Statistics View More

September Temperature

Cape Willoughby (4km)

  • Lowest 2 September, 2026

    9.9 °C

  • Average September

    13.8 °C

  • Highest 20 September, 2026

    22.3 °C

Climate (2021–2026)

Cape Willoughby (4km)

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  • Average Low 2021–2026

    13.3 °C

  • Average 2021–2026

    15.4 °C

  • Average High 2021–2026

    18.5 °C
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