Mouth Flat Beach Weather Forecast

    • 15
    • 19

    Windy

    • 13
    • 18

    Windy

    • 12
    • 20

    Windy

    • 14
    • 24

    Partly cloudy

    • 14
    • 22

    Cloudy

    • 14
    • 22

    Cloudy

    • 13
    • 23

    Sunny

Today 30 Dec Kangaroo Island

Cloudy. Winds southeasterly 30 to 45 km/h.

South Central Coastal Waters

Wind
Southeasterly 20 to 30 knots.
Seas
2 to 2.5 metres.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Cloudy.
Weather Situation
A high pressure system will begin to move south of the Bight late Tuesday, bringing about a persistent ridge over coastal waters. This high will move over Tasmania on Friday before it's replaced by a new high pressure system on Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mouth Flat Beach Temperature Statistics View More

December Temperature

Cape Willoughby (17km)

  • Lowest 2 December, 2025

    10.7 °C

  • Average December

    17.6 °C

  • Highest 18 December, 2025

    35.9 °C

Climate (2020–Present)

Cape Willoughby (17km)

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  • Average Low 2020–2025

    13.3 °C

  • Average 2020–2025

    15.3 °C

  • Average High 2020–2025

    18.4 °C
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