American Beach Weather Forecast

    • 8
    • 17

    Partly cloudy

    • 11
    • 20

    Windy

    • 15
    • 20

    Shower

    • 10
    • 16

    Shower

    • 8
    • 16

    Partly cloudy

    • 10
    • 21

    Shower

    • 9
    • 16

    Shower

Today 13 Sep Kangaroo Island

Mostly sunny. Winds north to northwesterly 15 to 25 km/h becoming light in the evening then becoming northerly 15 to 20 km/h in the late evening. Daytime maximum temperatures around 17.

Investigator Strait Coastal Waters

Wind
Northerly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
West to southwesterly around 1 metre.
Weather
The chance of fog in the early morning with reduced visibility. Mostly sunny day.
Weather Situation
A high pressure system in the Bight will slowly drift eastwards over NSW resulting in a north to northwesterly airstream establishing across coastal waters on the weekend. A cold front will move across coastal waters on Monday, followed by another high pressure system on Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

American Beach Temperature Statistics View More

September Temperature

Cape Willoughby (24km)

  • Lowest 1 September, 2025

    8.8 °C

  • Average September

    12.9 °C

  • Highest 6 September, 2025

    23.9 °C

Climate (2020–Present)

Cape Willoughby (24km)

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  • Average Low 2020–2025

    13.3 °C

  • Average 2020–2025

    15.4 °C

  • Average High 2020–2025

    18.4 °C
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