Marion Bay Weather Forecast

    • 11
    • 16

    Partly cloudy

    • 11
    • 17

    Partly cloudy

    • 8
    • 17

    Partly cloudy

    • 11
    • 17

    Showers

    • 10
    • 17

    Shower or two

    • 10
    • 16

    Partly cloudy

    • 9
    • 18

    Shower or two

Today 21 Aug Yorke Peninsula

Partly cloudy. Light winds.

Investigator Strait Coastal Waters

Wind
Westerly 10 to 15 knots.
Seas
Around 1 metre.
1st Swell
West to southwesterly 1 to 2 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system over the Bight slowly drifts over SA on Saturday to be centred over the eastern states by Sunday. A weak front embedded in the southwesterly flow around the high, clips the southeast early Saturday morning. A low pressure system and associated trough move into the far west later Sunday and then moves across the state on Monday an d out over the eastern states by later Tuesday. Another ridge of high pressure moves into the west later Tuesday.
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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

    12.7 °C
  • Highest 18 August, 2026

    19.9 °C

Climate (2021–2026)

Stenhouse Bay (6km)

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  • Average Low 2021–2026

    13.2 °C
  • Average 2021–2026

    16.1 °C
  • Average High 2021–2026

    20.5 °C
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