Marion Bay Weather Forecast

    • 9
    • 17

    Partly cloudy

    • 10
    • 18

    Showers increasing

    • 11
    • 17

    Showers easing

    • 10
    • 17

    Shower or two

    • 10
    • 16

    Partly cloudy

    • 10
    • 17

    Partly cloudy

    • 8
    • 17

    Cloudy

Today 17 Aug Yorke Peninsula

Partly cloudy. Medium chance of showers. Winds easterly 15 to 25 km/h turning northeasterly in the evening.

Investigator Strait Coastal Waters

Wind
Easterly 15 to 20 knots turning northeasterly in the evening.
Seas
Around 1 metre.
1st Swell
West to southwesterly 1 to 1.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system over the Tasman Sea extends a ridge over South Australia. A weakening cold front moves into far southwestern parts later on Tuesday and moves southeast across the state into Wednesday. Another high pressure system develops over the north of the state later Wednesday, 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

Marion Bay Temperature Statistics View More

August Temperature

Stenhouse Bay (6km)

  • Lowest 1 August, 2026

    4.5 °C

  • Average August

    12.4 °C

  • Highest 7 August, 2026

    19 °C

Climate (2021–2026)

Stenhouse Bay (6km)

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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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