Mouth Flat Beach Weather Forecast

    • 10
    • 16

    Sunny

    • 12
    • 18

    Shower

    • 11
    • 16

    Shower

    • 8
    • 17

    Partly cloudy

    • 11
    • 19

    Shower

    • 13
    • 17

    Shower

    • 11
    • 17

    Shower

Today 8 Jun Kangaroo Island

Sunny. Winds northerly 20 to 30 km/h. Daytime maximum temperatures around 16.

South Central Coastal Waters

Wind
Northerly 15 to 25 knots, reaching up to 30 knots west of Kangaroo Island in the late evening.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres during the morning.
1st Swell
Southwesterly 3 to 4 metres, decreasing to 2.5 to 3 metres during the morning.
Weather
Sunny.
Weather Situation
A high pressure system centred near the NSW south coast will move across the Tasman Sea early this week. Northerly winds freshen over the state on Tuesday ahead of a weakening cold front mid-week, with a second cold front expected late in the week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mouth Flat Beach Temperature Statistics View More

June Temperature

Cape Willoughby (17km)

  • Lowest 5 June, 2026

    9.8 °C

  • Average June

    13.4 °C

  • Highest 1 June, 2026

    18.3 °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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