Marion Bay Weather Forecast

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    Cloudy

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    • 20

    Partly cloudy

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    Cloudy

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    Sunny

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    Partly cloudy

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    Partly cloudy

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    Partly cloudy

Today 12 Apr Yorke Peninsula

Cloudy. Slight chance of a light shower. Winds southwesterly 20 to 30 km/h becoming light in the late evening. Daytime maximum temperatures around 20.

Investigator Strait Coastal Waters

Wind
Southwesterly 15 to 20 knots decreasing to about 10 knots in the late evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres through the Backstairs Passage.
1st Swell
West to southwesterly below 1 metre, increasing to 2 to 3 metres through the Backstairs Passage.
Weather
Cloudy.
Weather Situation
A high pressure system south of the Bight will move slowly northeast this week allowing a series of fronts to pass over the southeast on Wednesday and Thursday. A second high pressure system is expected to follow and become established well south of the Bight by Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marion Bay Temperature Statistics View More

April Temperature

Stenhouse Bay (6km)

  • Lowest 8 April, 2026

    11.3 °C

  • Average April

    17.1 °C

  • Highest 6 April, 2026

    25.2 °C

Climate (2021–Present)

Stenhouse Bay (6km)

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  • Average Low 2021–2026

    13.1 °C

  • Average 2021–2026

    16 °C

  • Average High 2021–2026

    20.5 °C
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