Mouth Flat Beach Weather Forecast

    • 11
    • 18

    Cloudy

    • 11
    • 19

    Shower

    • 11
    • 16

    Shower

    • 12
    • 18

    Shower

    • 13
    • 17

    Shower

    • 13
    • 17

    Shower

    • 12
    • 18

    Cloudy

Today 5 May Kangaroo Island

Cloudy. Slight chance of a shower in the west, near zero chance elsewhere. Light winds.

South Central Coastal Waters

Wind
Westerly about 10 knots increasing to 10 to 15 knots in the late afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 2.5 metres.
Weather
Cloudy.
Weather Situation
A ridge of high pressure over SA will weaken briefly as a cold front crosses the southeast on Wednesday afternoon. The ridge will begin to re-establish in the wake of the front and stabilise over SA with the strong high pressure centre moving into the Bight over the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mouth Flat Beach Temperature Statistics View More

May Temperature

Cape Willoughby (17km)

  • Lowest 3 May, 2026

    11.5 °C

  • Average May

    17.5 °C

  • Highest 1 May, 2026

    24.4 °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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