Mouth Flat Beach Weather Forecast

    • 13
    • 18

    Shower

    • 11
    • 19

    Cloudy

    • 11
    • 19

    Cloudy

    • 11
    • 20

    Partly cloudy

    • 12
    • 21

    Cloudy

    • 12
    • 19

    Partly cloudy

    • 12
    • 20

    Partly cloudy

Today 12 Apr Kangaroo Island

Cloudy. Slight chance of a light shower, becoming less likely in the late afternoon and evening. Winds southwesterly 20 to 30 km/h becoming light in the late evening. Daytime maximum temperatures around 18.

South Central Coastal Waters

Wind
Southwesterly 15 to 20 knots.
Seas
1 to 1.5 metres.
1st Swell
Southerly 4 to 5 metres.
Weather
Cloudy.
Weather Situation
A high pressure system south of the Bight will move slowly northeast this week allowing a series of fronts to pass over the southeast on Wednesday and Thursday. A second high pressure system is expected to follow and become established well south of the Bight by Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mouth Flat Beach Temperature Statistics View More

April Temperature

Cape Willoughby (17km)

  • Lowest 11 April, 2026

    10.5 °C

  • Average April

    16.5 °C

  • Highest 6 April, 2026

    25.4 °C

Climate (2021–Present)

Cape Willoughby (17km)

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  • Average Low 2021–2026

    13.3 °C

  • Average 2021–2026

    15.4 °C

  • Average High 2021–2026

    18.4 °C
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