Mouth Flat Beach Weather Forecast

    • 15
    • 24

    Shower

    • 12
    • 20

    Shower

    • 10
    • 20

    Partly cloudy

    • 12
    • 22

    Partly cloudy

    • 14
    • 24

    Partly cloudy

    • 16
    • 25

    Sunny

    • 17
    • 25

    Partly cloudy

Today 25 Apr Kangaroo Island

Cloudy. Very high chance of showers. The chance of a thunderstorm later tonight. Winds northwesterly 15 to 20 km/h becoming light in the evening.

South Central Coastal Waters

Wind
West to northwesterly 10 to 15 knots tending west to southwesterly in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Cloudy. 90% chance of showers. The chance of a thunderstorm later tonight.
Weather Situation
A strong high pressure system over the Tasman Sea will maintain a ridge over SA. A cold front over the state will weaken and clear to the east early Sunday. A new high pressure system will develop in the Bight on Sunday, drifting east early next week to merge with the strong high in the Tasman Sea.
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  • 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 °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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