American River - American River Boat Ramp Weather Forecast

    • 12
    • 17

    Showers increasing

    • 11
    • 17

    Showers easing

    • 8
    • 17

    Partly cloudy

    • 7
    • 16

    Possible shower

    • 9
    • 17

    Partly cloudy

    • 8
    • 16

    Partly cloudy

    • 9
    • 17

    Shower or two

Today 18 Aug Kangaroo Island

Partly cloudy. Very high chance of showers, most likely this evening. The chance of a thunderstorm in the west this evening. Winds northeasterly 15 to 25 km/h turning northerly 25 to 35 km/h during the morning. Daytime maximum temperatures around 17.

Investigator Strait Coastal Waters

Wind
Northeasterly 10 to 15 knots turning northerly 15 to 20 knots in the late morning and afternoon.
Seas
1 to 1.5 metres.
1st Swell
West to southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon.
Weather
Partly cloudy. 95% chance of showers. The chance of a thunderstorm this evening.
Weather Situation
A large blocking high pressure system persists over the Tasman Sea. An upper level disturbance responsible for precipitation over central and eastern parts will weaken today as a weakening cold front moves across western parts today and across the southeast on Wednesday. A high pressure ridge is expected to develop over South Australia from Wednesday afternoon with weak troughs clipping the southeast in a broad westerly flow on Thursday and Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

American River - American River Boat Ramp Temperature Statistics View More

August Temperature

Kingscote Airport (24km)

  • Lowest 1 August, 2026

    -0.1 °C

  • Average August

    11.1 °C

  • Highest 13 August, 2026

    18.1 °C

Climate (2021–2026)

Kingscote Airport (24km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    14.8 °C

  • Average High 2021–2026

    21.1 °C
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