Mouth Flat Beach Weather Forecast

    • 15
    • 21

    Cloudy

    • 15
    • 20

    Shower

    • 15
    • 21

    Windy

    • 15
    • 23

    Windy

    • 16
    • 29

    Partly cloudy

    • 17
    • 27

    Partly cloudy

    • 16
    • 24

    Cloudy

Today 14 Jan Kangaroo Island

Partly cloudy. Slight chance of a shower in the west, near zero chance elsewhere. Winds southerly 20 to 30 km/h.

South Central Coastal Waters

Wind
Southeasterly 15 to 20 knots turning southerly in the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres by early evening.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Cloudy.
Weather Situation
A ridge of high pressure south of SA will persist over the coming days, with the high centre moving to the south of the Bight on Thursday. The high will continue moving eastwards into the Tasman Sea later over the weekend with the ridge lingering into Saturday. On Sunday a trough will begin to move in from the west, reaching central districts by the evening.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mouth Flat Beach Temperature Statistics View More

January Temperature

Cape Willoughby (17km)

  • Lowest 1 January, 2026

    13.7 °C

  • Average January

    18 °C

  • Highest 7 January, 2026

    36.5 °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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