Mouth Flat Beach Weather Forecast

    • 10
    • 15

    Shower

    • 8
    • 15

    Shower

    • 8
    • 16

    Shower

    • 8
    • 15

    Partly cloudy

    • 11
    • 16

    Shower

    • 9
    • 14

    Shower

    • 8
    • 14

    Cloudy

Today 20 Aug Kangaroo Island

Partly cloudy. Very high chance of showers, most likely in the late morning and afternoon. Winds northwesterly 20 to 30 km/h tending westerly in the middle of the day. Overnight temperatures falling to between 7 and 10 with daytime temperatures reaching around 16.

South Central Coastal Waters

Wind
Northwest to southwesterly 15 to 25 knots, reaching up to 30 knots during the morning.
Seas
1 to 2 metres.
1st Swell
Westerly 2 to 3 metres, increasing to 2.5 to 4 metres west of Kangaroo Island.
Weather
Partly cloudy. 90% chance of showers.
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

    12.6 °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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