O'Sullivan Beach Weather Forecast

    • 12
    • 26

    Showers

    • 13
    • 18

    Partly cloudy

    • 11
    • 18

    Cloudy

    • 9
    • 19

    Partly cloudy

    • 10
    • 21

    Partly cloudy

    • 11
    • 22

    Partly cloudy

    • 13
    • 25

    Sunny

Today 11 Oct Adelaide

Becoming cloudy. High chance of showers, most likely in the late afternoon and evening. The chance of a thunderstorm in the afternoon and evening, possibly severe with damaging winds. Winds north to northeasterly 20 to 25 km/h tending north to northwesterly 25 to 35 km/h in the middle of the day then becoming light in the evening.

Adelaide Metropolitan Waters

Wind
Northerly 15 to 20 knots shifting west to southwesterly below 10 knots in the evening.
Seas
Around 1 metre.
1st Swell
West to southwesterly below 1 metre.
Weather
Becoming cloudy. 80% chance of showers. The chance of a thunderstorm in the afternoon and evening, with possible squalls.
Weather Situation
A ridge of high pressure to the east directs a northerly flow over South Australia. A trough and cold front about the far west will cross the state today and Monday morning. A cool southwesterly airstream will follow as a new high drifts eastwards across the Bight early this week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

O'Sullivan Beach Temperature Statistics View More

October Temperature

Noarlunga (5 km)

  • Lowest 3 October, 2026

    9.2 °C

  • Average October

    15.8 °C

  • Highest 8 October, 2026

    28.7 °C

Climate (2021–2026)

Noarlunga (5 km)

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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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