Prime Beach Weather Forecast

    • 19
    • 28

    Partly cloudy

    • 14
    • 26

    Sunny

    • 16
    • 24

    Shower

    • 13
    • 22

    Cloudy

    • 14
    • 23

    Partly cloudy

    • 11
    • 23

    Partly cloudy

    • 11
    • 26

    Partly cloudy

Today 19 Dec Mid North

Mostly clear. Slight chance of a shower. The chance of a thunderstorm. Winds west to southwesterly 25 to 35 km/h tending south to southwesterly 15 to 25 km/h in the evening.

Gulf St Vincent Coastal Waters

Wind
Southerly 15 to 20 knots, reaching up to 25 knots near the Yorke Peninsula coast in the late afternoon.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres north of Port Vincent to Brighton.
1st Swell
Southerly below 0.5 metres.
Weather
Mostly clear.
Weather Situation
A broad trough of low pressure lies over east and northern parts of the State. This area of low pressure is expected to linger over the northeast Saturday before moving east Sunday with the next low pressure system that develops south of the bight. A high pressure ridge then extends over the west and south during Sunday, and throughout by Monday. A persistent high pressure ridge remains over the State and Coastal Waters during Tuesday and Wednesday.
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  • Temperature Forecast Bureau of Meteorology

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Prime Beach Temperature Statistics View More

December Temperature

Roseworthy (32km)

  • Lowest 7 December, 2025

    4.4 °C

  • Average December

    21.6 °C

  • Highest 4 December, 2025

    39.3 °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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