Mouth Flat Beach Weather Forecast

    • 12
    • 16

    Cloudy

    • 9
    • 17

    Partly cloudy

    • 11
    • 17

    Cloudy

    • 10
    • 17

    Sunny

    • 11
    • 22

    Sunny

    • 16
    • 20

    Shower

    • 11
    • 16

    Shower

Today 4 Oct Kangaroo Island

Cloudy. Slight chance of a shower in the west, becoming less likely later this evening. Near zero chance of rain elsewhere. Winds southeasterly 15 to 20 km/h becoming light in the evening.

South Central Coastal Waters

Wind
East to southeasterly about 10 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 3 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system south of SA extends a ridge over the state. A cold front is forecast to pass over the southeast early Tuesday, followed quickly by a high pressure system that is expected to pass over the south of the state later Tuesday and on Wednesday, maintaining a ridge over the state. Another cold front is expected to start moving across the Bight later in the week
Graph Plots Open in Graphs

  • 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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