Mouth Flat Beach Weather Forecast

    • 12
    • 23

    Partly cloudy

    • 13
    • 23

    Sunny

    • 15
    • 25

    Sunny

    • 17
    • 26

    Partly cloudy

    • 15
    • 21

    Shower

    • 12
    • 21

    Partly cloudy

    • 15
    • 27

    Shower

Today 16 Oct Kangaroo Island

Mostly sunny. Winds northeasterly 15 to 20 km/h tending easterly in the late afternoon then becoming light in the evening. Daytime maximum temperatures in the low to mid 20s.

South Central Coastal Waters

Wind
Northeasterly 10 to 15 knots turning easterly in the early afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 metres.
Weather
Mostly sunny.
Weather Situation
A high pressure system moving over the southern Tasman Sea extends a ridge over eastern SA until early next week, while a trough lies through the far northwest, before weakening over the weekend. A cold front is forecast to cross the Bight on Monday, extending a trough over western and southern SA.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mouth Flat Beach Temperature Statistics View More

October Temperature

Cape Willoughby (17 km)

  • Lowest 13 October, 2026

    10.6 °C

  • Average October

    14.5 °C

  • Highest 11 October, 2026

    25.1 °C

Climate (2021–2026)

Cape Willoughby (17 km)

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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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