Marion Bay Weather Forecast

    • 11
    • 17

    Cloudy

    • 11
    • 17

    Showers

    • 10
    • 16

    Cloudy

    • 11
    • 17

    Partly cloudy

    • 8
    • 17

    Partly cloudy

    • 11
    • 17

    Shower or two

    • 10
    • 15

    Shower or two

Today 19 Aug Yorke Peninsula

Partly cloudy. Winds westerly 20 to 30 km/h becoming light in the late evening.

Investigator Strait Coastal Waters

Wind
Westerly 15 to 25 knots decreasing to 10 to 15 knots in the late evening.
Seas
1.5 to 2 metres, decreasing below 1.5 metres later in the evening.
1st Swell
Westerly 1.5 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A cold front clears to the east Wednesday evening. Weak troughs clip the southeast in a broad westerly flow on Thursday and Friday, as a ridge of high pressure is expected to approach South Australia from the west. The high centre is expected to linger over the state on the weekend.
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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

    12.5 °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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