O'Sullivan Beach Weather Forecast

    • 9
    • 15

    Shower or two

    • 8
    • 16

    Partly cloudy

    • 11
    • 17

    Showers increasing

    • 10
    • 14

    Showers

    • 9
    • 14

    Showers

    • 8
    • 16

    Shower or two

    • 8
    • 14

    Showers

Today 19 Jul Adelaide

Partly cloudy. Medium chance of showers, becoming less likely in the late afternoon and evening. Winds northwesterly 25 to 35 km/h tending westerly 20 to 30 km/h in the middle of the day then becoming light in the evening.

Adelaide Metropolitan Waters

Wind
North to northwesterly 20 to 25 knots turning westerly 10 to 15 knots in the late morning and early afternoon.
Seas
1.5 to 2 metres, decreasing to 1 metre during the afternoon.
1st Swell
West to southwesterly around 1 metre, increasing to 1 to 1.5 metres south of Port Noarlunga.
Weather
Partly cloudy. 50% chance of showers.
Weather Situation
A high pressure ridge will persist over SA through to the weekend. A cold front has crossed the southern coasts this morning, with a stronger cold front expected to sweep across coastal waters from Monday, exiting the south eastern coasts on Tuesday morning.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

O'Sullivan Beach Temperature Statistics View More

July Temperature

Noarlunga (5km)

  • Lowest 1 July, 2025

    5.3 °C

  • Average July

    11.9 °C

  • Highest 4 July, 2025

    18.2 °C

Climate (2020–Present)

Noarlunga (5km)

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  • Average Low 2020–2025

    12.7 °C

  • Average 2020–2025

    16.7 °C

  • Average High 2020–2025

    21.8 °C
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