Marion Bay Weather Forecast

    • 18
    • 25

    Mostly sunny

    • 17
    • 24

    Showers increasing

    • 14
    • 20

    Shower or two

    • 13
    • 21

    Mostly sunny

    • 14
    • 23

    Partly cloudy

    • 16
    • 24

    Partly cloudy

    • 17
    • 26

    Mostly sunny

Today 24 Apr Yorke Peninsula

Mostly sunny. Winds north to northeasterly 20 to 30 km/h. Daytime maximum temperatures in the mid to high 20s.

Investigator Strait Coastal Waters

Wind
North to northeasterly 15 to 20 knots.
Seas
1 to 1.5 metres, decreasing to 1 metre around midday.
1st Swell
West to southwesterly around 1 metre, increasing to 1 to 1.5 metres inshore.
Weather
Mostly sunny.
Weather Situation
A strong high pressure system east of Tasmania will maintain a ridge over SA this week. A cold front will pass over the south on Saturday, weakening and clearing in the east early Sunday. A new high pressure system will develop in the Bight on Sunday, slowly drifting to the southeast on Monday while continuing to extend a ridge over SA.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marion Bay Temperature Statistics View More

April Temperature

Stenhouse Bay (6km)

  • Lowest 8 April, 2026

    11.3 °C

  • Average April

    17.3 °C

  • Highest 18 April, 2026

    25.9 °C

Climate (2021–Present)

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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