Mouth Flat Beach Weather Forecast

    • 13
    • 18

    Shower

    • 11
    • 19

    Cloudy

    • 11
    • 19

    Cloudy

    • 11
    • 20

    Sunny

    • 12
    • 21

    Shower

    • 12
    • 18

    Cloudy

    • 12
    • 19

    Partly cloudy

Today 12 Apr Kangaroo Island

Cloudy. Medium chance of showers, most likely in the late morning and afternoon. Winds southwesterly 20 to 30 km/h becoming light in the late evening. Overnight temperatures falling to between 10 and 13 with daytime temperatures reaching around 18.

South Central Coastal Waters

Wind
Southwesterly 15 to 25 knots decreasing to 10 to 15 knots in the evening.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
1st Swell
Southwesterly 5 metres, tending southerly 4 to 5 metres during the morning.
Weather
Cloudy. 50% chance of showers.
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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