Williamstown Weather Forecast

    • 20
    • 37

    Partly cloudy

    • 16
    • 29

    Sunny

    • 11
    • 22

    Partly cloudy

    • 10
    • 22

    Partly cloudy

    • 9
    • 29

    Sunny

    • 14
    • 35

    Sunny

    • 19
    • 37

    Sunny

Today 12 Dec Adelaide

Partly cloudy. Winds east to northeasterly 20 to 30 km/h tending northwest to southwesterly 15 to 25 km/h in the middle of the day then tending south to southeasterly 20 to 30 km/h in the late afternoon.

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  • Temperature Forecast Bureau of Meteorology

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Williamstown Temperature Statistics View More

December Temperature

Mount Crawford (Fire Tower) (7km)

  • Lowest 7 December, 2025

    6.2 °C

  • Average December

    16.9 °C

  • Highest 4 December, 2025

    31.9 °C

Climate (2020–Present)

Mount Crawford (Fire Tower) (7km)

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  • Average Low 2020–2025

    9.6 °C

  • Average 2020–2025

    13.6 °C

  • Average High 2020–2025

    19.1 °C
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