Marion Bay Weather Forecast

    • 9
    • 16

    Cloud clearing

    • 9
    • 20

    Sunny

    • 12
    • 22

    Sunny

    • 14
    • 20

    Becoming windy. Partly cloudy

    • 11
    • 16

    Cloudy

    • 10
    • 17

    Partly cloudy

    • 12
    • 20

    Partly cloudy

Today 17 Sep Yorke Peninsula

Mostly sunny. The chance of morning frost in the north. Light winds. Daytime maximum temperatures between 16 and 20.

Investigator Strait Coastal Waters

Wind
East to northeasterly about 10 knots.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 1 metre, increasing to 1 to 2 metres through the Backstairs Passage.
Weather
Cloud clearing.
Weather Situation
A strong high pressure system south of the state will maintain a ridge across SA for the next few days as it drifts eastwards, to be located over NSW from Friday. A cold front is then likely to approach from the west late Saturday and move across SA on Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marion Bay Temperature Statistics View More

September Temperature

Stenhouse Bay (6km)

  • Lowest 8 September, 2026

    8.9 °C

  • Average September

    14 °C

  • Highest 12 September, 2026

    25.2 °C

Climate (2021–2026)

Stenhouse Bay (6km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    13.2 °C

  • Average 2021–2026

    16.1 °C

  • Average High 2021–2026

    20.5 °C
Get WillyWeather+ to remove ads