Mouth Flat Beach Weather Forecast

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    Partly cloudy

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    Partly cloudy

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    • 24

    Partly cloudy

    • 17
    • 25

    Partly cloudy

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    • 24

    Shower

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    Storm

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    Shower

Today 28 Apr Kangaroo Island

Mostly sunny. The chance of morning fog. Light winds becoming south to southeasterly 15 to 20 km/h in the early afternoon then becoming light in the evening. Daytime maximum temperatures in the low to mid 20s.

South Central Coastal Waters

Wind
Variable about 10 knots becoming southeasterly 10 to 15 knots in the late afternoon then tending easterly in the late evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 3 metres.
Weather
Partly cloudy.
Weather Situation
A strong high pressure system over the Tasman Sea extends a ridge across South Australia through to Friday. Northerly winds freshen on Friday ahead of a trough that is forecast to move across the far west Friday afternoon, then continue across the state during the weekend.
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

    17.1 °C

  • Highest 21 April, 2026

    27.2 °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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