O'Sullivan Beach Weather Forecast

    • 8
    • 16

    Mostly sunny

    • 9
    • 16

    Mostly sunny

    • 9
    • 16

    Partly cloudy

    • 10
    • 15

    Showers

    • 8
    • 13

    Shower or two

    • 6
    • 13

    Cloudy

    • 7
    • 13

    Partly cloudy

Today 19 Jul Adelaide

Mostly sunny. Light winds.

Adelaide Metropolitan Waters

Wind
North to northeasterly 10 to 15 knots decreasing to below 10 knots in the middle of the day.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 0.5 metres.
Weather
Mostly sunny.
Weather Situation
A strong high pressure system lies over Victoria and will continue to extend a ridge over South Australia until later Tuesday. A weak trough will develop in the west on Tuesday, ahead of a cold front that is expected to extend over southern districts during Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

O'Sullivan Beach Temperature Statistics View More

July Temperature

Noarlunga (5km)

  • Lowest 17 July, 2026

    3.6 °C

  • Average July

    11.5 °C

  • Highest 9 July, 2026

    17.5 °C

Climate (2021–2026)

Noarlunga (5km)

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  • Average Low 2021–2026

    12.8 °C

  • Average 2021–2026

    16.8 °C

  • Average High 2021–2026

    21.9 °C
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