Prime Beach Weather Forecast

    • 15
    • 23

    Windy

    • 11
    • 26

    Sunny

    • 13
    • 36

    Sunny

    • 23
    • 43

    Partly cloudy

    • 18
    • 33

    Sunny

    • 17
    • 42

    Sunny

    • 24
    • 36

    Sunny

Today 21 Jan Mid North

Sunny. Winds southerly 25 to 40 km/h. Daytime maximum temperatures 25 to 31.

Gulf St Vincent Coastal Waters

Wind
Southerly 20 to 30 knots.
Seas
2 to 2.5 metres.
1st Swell
South to southwesterly below 0.5 metres.
Weather
Cloudy.
Weather Situation
A high pressure system south of WA maintains a ridge over western and southern SA, before it is expected to move eastwards on Thursday to be over the Tasman Sea on Friday. A trough of low pressure approaches from the west on Friday, forecast to move over SA during Saturday, reaching the northeast by early Sunday. Another high pressure system is expected to move over waters to the south over the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Prime Beach Temperature Statistics View More

January Temperature

Roseworthy (32km)

  • Lowest 1 January, 2026

    6.6 °C

  • Average January

    23.2 °C

  • Highest 8 January, 2026

    47.1 °C

Climate (2021–Present)

Roseworthy (32km)

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  • Average Low 2021–2026

    9.7 °C

  • Average 2021–2026

    16.2 °C

  • Average High 2021–2026

    23.6 °C
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