Mouth Flat Beach Weather Forecast

    • 12
    • 16

    Cloudy

    • 9
    • 17

    Partly cloudy

    • 11
    • 17

    Partly cloudy

    • 10
    • 17

    Sunny

    • 11
    • 22

    Sunny

    • 15
    • 20

    Shower

    • 11
    • 17

    Shower

Today 4 Oct Kangaroo Island

Cloudy. Slight chance of a shower, most likely in the late morning and afternoon. Winds southeasterly 15 to 20 km/h becoming light in the evening. Daytime maximum temperatures around 17.

South Central Coastal Waters

Wind
East to southeasterly 10 to 15 knots decreasing to about 10 knots in the early afternoon.
Seas
Around 1 metre.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Cloudy.
Weather Situation
A trough over the northwest will weaken today with a high pressure ridge south of the state expected to move north and hover over SA during Monday. A cold front is forecast to pass over the southeast early Tuesday, then quickly followed by a high pressure system that is expected to pass to the south of the state later Tuesday and on Wednesday, maintaining a ridge over the state.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mouth Flat Beach Temperature Statistics View More

October Temperature

Cape Willoughby (17km)

  • Lowest 2 October, 2026

    11.5 °C

  • Average October

    13.8 °C

  • Highest 1 October, 2026

    17.4 °C

Climate (2021–2026)

Cape Willoughby (17km)

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  • Average Low 2021–2026

    13.4 °C

  • Average 2021–2026

    15.4 °C

  • Average High 2021–2026

    18.5 °C
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