O'Sullivan Beach Weather Forecast

    • 15
    • 21

    Partly cloudy

    • 14
    • 20

    Shower or two

    • 11
    • 19

    Possible shower

    • 14
    • 19

    Showers easing

    • 12
    • 19

    Shower or two

    • 11
    • 19

    Partly cloudy

    • 11
    • 19

    Mostly sunny

Today 16 May Adelaide

Partly cloudy. Medium chance of showers. A thunderstorm likely in the evening, possibly severe in the south with heavy rain which may lead to flash flooding. Light winds.

Adelaide Metropolitan Waters

Wind
North to northwesterly below 10 knots becoming east to southeasterly in the late afternoon.
Seas
Below 0.5 metres.
1st Swell
West to southwesterly below 1 metre.
Weather
Partly cloudy. The chance of a thunderstorm early this evening.
Weather Situation
A trough of low pressure about eastern waters will move into Bass Strait early Sunday morning. A ridge of high pressure builds in the west. A cold front will move over the south early in the week, followed by a high pressure system, which will linger in the Bight midweek.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

O'Sullivan Beach Temperature Statistics View More

May Temperature

Noarlunga (5km)

  • Lowest 7 May, 2026

    9.1 °C

  • Average May

    16.7 °C

  • Highest 1 May, 2026

    28.9 °C

Climate (2021–Present)

Noarlunga (5km)

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  • Average Low 2021–2026

    12.8 °C

  • Average 2021–2026

    16.7 °C

  • Average High 2021–2026

    21.9 °C
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