American Beach Weather Forecast

    • 12
    • 33

    Sunny

    • 17
    • 36

    Sunny

    • 17
    • 25

    Cloudy

    • 14
    • 22

    Shower

    • 13
    • 21

    Shower

    • 12
    • 21

    Partly cloudy

    • 13
    • 19

    Cloudy

Today 17 Dec Kangaroo Island

Sunny. Winds north to northeasterly 15 to 25 km/h tending north to northwesterly in the middle of the day then becoming light in the evening. Overnight temperatures falling to between 10 and 13 with daytime temperatures reaching the low to mid 30s.

Investigator Strait Coastal Waters

Wind
Variable about 10 knots.
Seas
Below 1 metre.
1st Swell
Southerly 1 to 1.5 metres through the Backstairs Passage, decreasing to around 1 metre during the morning.
Weather
Sunny.
Graph Plots Open in Graphs

  • 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

    16.6 °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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