Marion Bay Weather Forecast

    • 11
    • 17

    Windy. Partly cloudy

    • 9
    • 15

    Showers

    • 8
    • 16

    Shower or two

    • 10
    • 17

    Showers increasing

    • 10
    • 16

    Shower or two

    • 9
    • 15

    Partly cloudy

    • 9
    • 16

    Shower or two

Today 13 Jul Yorke Peninsula

Partly cloudy. Slight chance of a shower in the north early this evening. Near zero chance of rain elsewhere. Winds southwesterly 15 to 25 km/h becoming light in the late evening.

Investigator Strait Coastal Waters

Wind
Southwesterly 15 to 20 knots, reaching up to 25 knots in the late afternoon and early evening.
Seas
1.5 to 2 metres, decreasing below 1.5 metres later in the evening.
1st Swell
West to southwesterly 1 to 2 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system in the Bight, will move over SA early Monday, ahead of a low pressure system, that will move over western waters on Monday and over land on Tuesday. A ridge of high pressure extends across coastal waters on Tuesday and Wednesday ahead of a cold front moving into western waters late Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marion Bay Temperature Statistics View More

July Temperature

Stenhouse Bay (6km)

  • Lowest 2 July, 2025

    6.5 °C

  • Average July

    12.2 °C

  • Highest 3 July, 2025

    18.5 °C

Climate (2020–Present)

Stenhouse Bay (6km)

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  • Average Low 2020–2025

    13.1 °C

  • Average 2020–2025

    16 °C

  • Average High 2020–2025

    20.4 °C
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