Althorpe Island Weather Forecast

    • 10
    • 18

    Showers increasing

    • 11
    • 17

    Showers easing

    • 10
    • 17

    Partly cloudy

    • 10
    • 17

    Possible shower

    • 11
    • 17

    Partly cloudy

    • 10
    • 17

    Partly cloudy

    • 9
    • 17

    Shower or two

Today 18 Aug Yorke Peninsula

Partly cloudy. Very high chance of showers, most likely in the evening. The chance of a thunderstorm in the south in the evening. Winds northeasterly 15 to 25 km/h turning northerly 20 to 30 km/h in the morning. Overnight temperatures falling to around 9 with daytime temperatures reaching around 18.

Central Coastal Waters

Wind
North to northeasterly 15 to 20 knots turning northwesterly 20 to 25 knots in the evening.
Seas
1 to 2 metres.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the evening.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Althorpe Island Temperature Statistics View More

August Temperature

Stenhouse Bay (12km)

  • Lowest 1 August, 2026

    4.5 °C

  • Average August

    12.5 °C

  • Highest 7 August, 2026

    19 °C

Climate (2021–2026)

Stenhouse Bay (12km)

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  • Average Low 2021–2026

    13.1 °C

  • Average 2021–2026

    16.1 °C

  • Average High 2021–2026

    20.5 °C
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