Prime Beach Weather Forecast

    • 16
    • 36

    Clear

    • 19
    • 39

    Sunny

    • 16
    • 26

    Cloudy

    • 12
    • 26

    Partly cloudy

    • 12
    • 28

    Sunny

    • 13
    • 31

    Partly cloudy

    • 15
    • 30

    Partly cloudy

Today 28 Dec Mid North

Clear. Winds east to southeasterly 15 to 25 km/h.

Gulf St Vincent Coastal Waters

Wind
South to southeasterly 10 to 15 knots tending east to southeasterly in the late evening.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 0.5 metres.
Weather
Clear.
Weather Situation
A high pressure high centre sits over the Tasman Sea today while a trough builds over western SA. The trough slowly moves eastward on Monday and Tuesday while another high centre moves south of the Bight from the west. The trough is expected to linger near the far northeast of SA on Wednesday and Thursday with a persistent ridge of high pressure south of the Bight.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Prime Beach Temperature Statistics View More

December Temperature

Roseworthy (32km)

  • Lowest 7 December, 2025

    4.4 °C

  • Average December

    20.9 °C

  • Highest 18 December, 2025

    42.6 °C

Climate (2020–Present)

Roseworthy (32km)

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  • Average Low 2020–2025

    9.7 °C

  • Average 2020–2025

    16.2 °C

  • Average High 2020–2025

    23.6 °C
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