Marion Bay Weather Forecast

    • 11
    • 16

    Showers. Windy

    • 9
    • 15

    Cloudy

    • 9
    • 14

    Cloudy

    • 8
    • 15

    Partly cloudy

    • 8
    • 15

    Partly cloudy

    • 9
    • 16

    Possible shower

    • 10
    • 15

    Partly cloudy

Today 28 Jul Yorke Peninsula

Partly cloudy. Very high chance of showers, most likely this morning. Winds northwesterly 20 to 30 km/h turning southwesterly 25 to 40 km/h during the day. Daytime maximum temperatures around 15.

Investigator Strait Coastal Waters

Wind
West to northwesterly 20 to 25 knots tending west to southwesterly 15 to 25 knots in the early morning. Winds reaching up to 30 knots in the afternoon.
Seas
1.5 to 2.5 metres.
1st Swell
Westerly 1.5 to 2.5 metres.
Weather
Cloudy. 90% chance of showers.
Weather Situation
A trough will continue to move over southeastern parts of the state today. A cold front will clip the far southeast this afternoon and evening before a high pressure system moves over the Bight from Wednesday. The high will extend a ridge across the state, as it slowly moves east into NSW by Saturday.
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 17 July, 2026

    4.2 °C

  • Average July

    12.3 °C

  • Highest 18 July, 2026

    18.4 °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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