Mouth Flat Beach Weather Forecast

    • 9
    • 15

    Cloudy

    • 10
    • 14

    Cloudy

    • 7
    • 13

    Partly cloudy

    • 8
    • 15

    Partly cloudy

    • 8
    • 14

    Partly cloudy

    • 8
    • 14

    Partly cloudy

    • 8
    • 15

    Shower

Today 4 Jul Kangaroo Island

Cloudy. Slight chance of a shower. Light winds becoming south to southeasterly 15 to 20 km/h in the early afternoon then becoming light in the late afternoon. Daytime maximum temperatures around 15.

South Central Coastal Waters

Wind
Southeasterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 3 metres, increasing to 3 to 4 metres later in the evening.
Weather
Cloudy.
Weather Situation
A high pressure system centred south of the Bight extends a ridge over SA. The high will move eastwards to be centred near Tasmania on Sunday and Monday but will continue to extend a ridge over SA. The ridge will weaken mid next week as a trough moves over western coasts then a cold front will move across from the west late Friday and early Saturday.
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 3 July, 2026

    9.2 °C

  • Average July

    11.9 °C

  • Highest 1 July, 2026

    14.8 °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

    18.4 °C
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