Mouth Flat Beach Weather Forecast

    • 15
    • 21

    Shower

    • 12
    • 18

    Shower

    • 11
    • 17

    Shower

    • 12
    • 18

    Cloudy

    • 11
    • 19

    Cloudy

    • 11
    • 20

    Partly cloudy

    • 12
    • 20

    Cloudy

Today 9 Apr Kangaroo Island

Partly cloudy. High chance of showers, most likely in the afternoon and evening. Winds northwesterly 20 to 30 km/h increasing to 40 km/h before turning westerly 25 to 35 km/h in the afternoon. Overnight temperatures falling to around 15 with daytime temperatures reaching the low 20s.

South Central Coastal Waters

Wind
Northwesterly 15 to 20 knots turning westerly 20 to 25 knots in the late morning and early afternoon. Winds reaching up to 30 knots during the afternoon and evening.
Seas
Around 1 metre, increasing to 1.5 to 2.5 metres during the morning.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Partly cloudy. 90% chance of showers. The chance of a thunderstorm inshore in the morning and afternoon.
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 8 April, 2026

    13.8 °C

  • Average April

    16.9 °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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