Mouth Flat Beach Weather Forecast

    • 8
    • 16

    Partly cloudy

    • 12
    • 17

    Shower

    • 11
    • 16

    Shower

    • 8
    • 16

    Shower

    • 8
    • 16

    Shower

    • 8
    • 16

    Cloudy

    • 8
    • 15

    Partly cloudy

Today 17 Aug Kangaroo Island

Partly cloudy. Slight chance of a shower, most likely at night. Winds easterly 15 to 20 km/h turning northeasterly 15 to 25 km/h in the late morning and afternoon. Overnight temperatures falling to between 5 and 8 with daytime temperatures reaching around 17.

South Central Coastal Waters

Wind
Easterly 10 to 15 knots turning northeasterly 15 to 20 knots in the late morning and afternoon.
Seas
Around 1 metre, increasing to 1 to 1.5 metres around midday.
1st Swell
Southwesterly 2.5 metres.
Weather
Mostly sunny.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mouth Flat Beach Temperature Statistics View More

August Temperature

Cape Willoughby (17km)

  • Lowest 4 August, 2026

    8.9 °C

  • Average August

    12.4 °C

  • Highest 7 August, 2026

    17.4 °C

Climate (2021–2026)

Cape Willoughby (17km)

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  • Average Low 2021–2026

    13.3 °C

  • Average 2021–2026

    15.4 °C

  • Average High 2021–2026

    18.5 °C
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