Stun'sail Boom Beach Weather Forecast

    • 15
    • 29

    Partly cloudy

    • 13
    • 20

    Cloudy

    • 11
    • 20

    Cloudy

    • 11
    • 22

    Partly cloudy

    • 13
    • 24

    Partly cloudy

    • 13
    • 23

    Cloudy

    • 13
    • 23

    Cloudy

Today 29 Dec Kangaroo Island

Partly cloudy. Winds northwest to northeasterly 15 to 25 km/h tending northwest to southwesterly in the middle of the day then tending southerly 25 to 35 km/h in the early afternoon. Daytime maximum temperatures in the low to mid 30s.

South Central Coastal Waters

Wind
Variable about 10 knots becoming southerly 15 to 20 knots in the middle of the day. Winds reaching up to 25 knots west of Kangaroo Island in the late evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A trough lies over western and central parts of SA and will slowly move eastwards today and Tuesday. A ridge of high pressure will begin to move south of the Bight on Tuesday, with the trough expected to move into the northeast on Wednesday and linger there for the remainder of the week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Stun'sail Boom Beach Temperature Statistics View More

December Temperature

Cape Borda (47km)

  • Lowest 7 December, 2025

    9.2 °C

  • Average December

    17.1 °C

  • Highest 18 December, 2025

    33.2 °C

Climate (2020–Present)

Cape Borda (47km)

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  • Average Low 2020–2025

    11.7 °C

  • Average 2020–2025

    14.8 °C

  • Average High 2020–2025

    18.8 °C
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