American Beach Weather Forecast

    • 12
    • 22

    Clear

    • 13
    • 33

    Sunny

    • 17
    • 36

    Sunny

    • 17
    • 24

    Cloudy

    • 13
    • 21

    Cloudy

    • 13
    • 21

    Shower

    • 12
    • 21

    Cloudy

Today 16 Dec Kangaroo Island

Clear. Winds east to southeasterly 15 to 25 km/h becoming light in the late evening.

Investigator Strait Coastal Waters

Wind
East to southeasterly 15 to 20 knots decreasing to about 10 knots in the late evening.
Seas
Around 1 metre.
1st Swell
West to southwesterly below 1 metre.
Weather
Clear.
Weather Situation
A high pressure system in Bass Strait will maintain a ridge across SA as it drifts into the Tasman Sea on Wednesday. A trough of low pressure will briefly enter the far northeast of SA with another trough slowly moving across the south and west on Thursday. In the wake of the trough a south to southwesterly flow will establish across the coasts on Friday, continuing into Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

American Beach Temperature Statistics View More

December Temperature

Cape Willoughby (24km)

  • Lowest 2 December, 2025

    10.7 °C

  • Average December

    16.7 °C

  • Highest 3 December, 2025

    27.7 °C

Climate (2020–Present)

Cape Willoughby (24km)

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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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