Mouth Flat Beach Weather Forecast

    • 11
    • 20

    Windy

    • 15
    • 25

    Cloudy

    • 14
    • 21

    Shower

    • 13
    • 19

    Shower

    • 9
    • 16

    Cloudy

    • 9
    • 15

    Cloudy

    • 10
    • 18

    Partly cloudy

Today 28 Sep Kangaroo Island

Partly cloudy. Winds easterly 20 to 30 km/h turning northeasterly in the late morning and afternoon. Overnight temperatures falling to around 10 with daytime temperatures reaching the low 20s.

South Central Coastal Waters

Wind
Easterly 15 to 25 knots turning northeasterly 15 to 20 knots in the evening.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mouth Flat Beach Temperature Statistics View More

September Temperature

Cape Willoughby (17km)

  • Lowest 2 September, 2026

    9.9 °C

  • Average September

    14 °C

  • Highest 24 September, 2026

    24.8 °C

Climate (2021–2026)

Cape Willoughby (17km)

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  • Average Low 2021–2026

    13.4 °C

  • Average 2021–2026

    15.4 °C

  • Average High 2021–2026

    18.5 °C
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