Mouth Flat Beach Weather Forecast

    • 14
    • 20

    Rain

    • 12
    • 19

    Shower

    • 10
    • 18

    Shower

    • 11
    • 18

    Shower

    • 11
    • 19

    Shower

    • 10
    • 18

    Cloudy

    • 11
    • 18

    Partly cloudy

Today 16 May Kangaroo Island

Partly cloudy. Very high chance of showers, most likely in the morning. The chance of a thunderstorm in the morning and afternoon. Winds northerly 15 to 25 km/h tending northwesterly in the early morning then becoming light in the early afternoon. Overnight temperatures falling to around 13 with daytime temperatures reaching around 20.

South Central Coastal Waters

Wind
North to northwesterly 15 to 20 knots tending west to northwesterly 10 to 15 knots in the morning then becoming variable below 10 knots in the late afternoon.
Seas
1 to 1.5 metres, decreasing below 1 metre during the afternoon.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the morning and afternoon.
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

    16 °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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