Marion Bay Weather Forecast

    • 19
    • 26

    Mostly sunny

    • 20
    • 27

    Late shower or two

    • 18
    • 22

    Sunny

    • 16
    • 22

    Mostly sunny

    • 16
    • 21

    Partly cloudy

    • 15
    • 20

    Mostly sunny

    • 15
    • 22

    Partly cloudy

Today 30 Mar Yorke Peninsula

Mostly sunny. Winds northerly 20 to 30 km/h turning northeasterly 15 to 20 km/h in the evening. Daytime maximum temperatures in the high 20s.

Investigator Strait Coastal Waters

Wind
Northerly 10 to 15 knots tending northeasterly in the evening.
Seas
Around 1 metre.
1st Swell
Southerly 1 to 1.5 metres through the Backstairs Passage, decreasing to around 1 metre during the morning.
Weather
Mostly sunny.
Weather Situation
A high pressure system over New South Wales extends a ridge over South Australia. The ridge will ease as the high moves further away into the Tasman Sea this morning. A trough is forecast to move across the western and central waters Tuesday afternoon and evening, pushing across southeastern coasts Wednesday morning. Another high pressure system is expected to become established south of the Bight later next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marion Bay Temperature Statistics View More

March Temperature

Stenhouse Bay (6km)

  • Lowest 10 March, 2026

    13.3 °C

  • Average March

    18.7 °C

  • Highest 23 March, 2026

    32.2 °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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