Mouth Flat Beach Weather Forecast

    • 11
    • 17

    Partly cloudy

    • 8
    • 17

    Partly cloudy

    • 12
    • 21

    Shower

    • 12
    • 17

    Shower

    • 8
    • 16

    Partly cloudy

    • 11
    • 17

    Shower

    • 11
    • 16

    Shower

Today 10 Jun Kangaroo Island

Partly cloudy. Slight chance of a shower, becoming less likely this morning. Winds westerly 20 to 30 km/h becoming light in the late afternoon. Daytime maximum temperatures around 16.

South Central Coastal Waters

Wind
Westerly 15 to 25 knots, reaching up to 30 knots early in the morning. Winds turning northwesterly below 10 knots in the evening.
Seas
2 to 3 metres, decreasing to 1 to 1.5 metres during the morning, then decreasing below 1 metre by early evening.
1st Swell
Westerly 2.5 to 4 metres, tending southwesterly 4 to 5 metres during the afternoon.
Weather
Partly cloudy. The chance of a thunderstorm west of Kangaroo Island this afternoon.
Weather Situation
A high pressure system over the Tasman Sea is responsible for a ridge hovering over the north of the state. The ridge will persist into tomorrow. Northerly winds will freshen ahead of a cold front expected overnight Friday or Saturday morning.
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

    13.8 °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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