Mouth Flat Beach Weather Forecast

    • 9
    • 16

    Shower

    • 8
    • 16

    Shower

    • 10
    • 16

    Shower

    • 10
    • 14

    Shower

    • 8
    • 13

    Shower

    • 7
    • 13

    Cloudy

    • 6
    • 13

    Partly cloudy

Today 25 Jul Kangaroo Island

Partly cloudy. Medium chance of showers. Winds west to southwesterly 15 to 25 km/h becoming light in the late evening.

South Central Coastal Waters

Wind
Westerly 15 to 20 knots tending southwesterly in the late afternoon.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy. 70% chance of showers.
Weather Situation
A strong high pressure system centred over the Bight will slowly drift east and weaken over the weekend. A cold front will move up through the Bight and over southern SA on Monday, with a new high pressure system moving into the Bight mid next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mouth Flat Beach Temperature Statistics View More

July Temperature

Cape Willoughby (17km)

  • Lowest 12 July, 2026

    8.2 °C

  • Average July

    12.3 °C

  • Highest 12 July, 2026

    16.7 °C

Climate (2021–2026)

Cape Willoughby (17km)

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  • Average Low 2021–2026

    13.3 °C

  • Average 2021–2026

    15.4 °C

  • Average High 2021–2026

    18.5 °C
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