Mouth Flat Beach Weather Forecast

    • 10
    • 20

    Sunny

    • 12
    • 23

    Partly cloudy

    • 13
    • 18

    Cloudy

    • 11
    • 20

    Sunny

    • 15
    • 23

    Shower

    • 13
    • 20

    Partly cloudy

    • 13
    • 23

    Partly cloudy

Today 15 Apr Kangaroo Island

Mostly sunny. Winds northwesterly 15 to 20 km/h becoming light in the late afternoon. Daytime maximum temperatures in the low 20s.

South Central Coastal Waters

Wind
Northwesterly 10 to 15 knots.
Seas
Around 1 metre.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system centred over the south of SA will move slowly eastwards this week and a cold front will move across the far southeast of SA on Thursday. A second high pressure system is expected to follow and will become established south of the Bight late Thursday then will move eastwards during Friday and Saturday. A trough will move over the far west on Saturday.
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

    16.2 °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