Mouth Flat Beach Weather Forecast

    • 16
    • 22

    Partly cloudy

    • 14
    • 26

    Sunny

    • 17
    • 24

    Partly cloudy

    • 16
    • 24

    Shower

    • 13
    • 22

    Shower

    • 12
    • 21

    Partly cloudy

    • 13
    • 24

    Partly cloudy

Today 22 Apr Kangaroo Island

Mostly clear. Winds southerly 20 to 25 km/h turning southeasterly 15 to 25 km/h in the late afternoon.

South Central Coastal Waters

Wind
South to southeasterly 10 to 15 knots tending east to southeasterly in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Mostly clear.
Weather Situation
A strong high pressure system east of Tasmania will maintain a ridge over SA this week. A cold front will pass over the south again on Saturday and weaken with a high pressure system to follow over waters south of the Bight on Sunday.
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

    16.4 °C

  • Highest 6 April, 2026

    25.4 °C

Climate (2021–Present)

Cape Willoughby (17km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    13.3 °C

  • Average 2021–2026

    15.4 °C

  • Average High 2021–2026

    18.4 °C
Get WillyWeather+ to remove ads