Yankalilla Bay Weather Forecast

    • 8
    • 16

    Shower

    • 10
    • 13

    Shower

    • 8
    • 13

    Cloudy

    • 8
    • 14

    Cloudy

    • 7
    • 13

    Cloudy

    • 9
    • 11

    Cloudy

    • 7
    • 14

    Sunny

Today 4 Sep Mount Lofty Ranges

Partly cloudy. High chance of showers in the north, medium chance elsewhere. The chance of a thunderstorm. Winds northerly 20 to 30 km/h turning northwesterly in the evening.

Investigator Strait Coastal Waters

Wind
North to northeasterly 10 to 15 knots turning northwesterly 15 to 25 knots in the evening. Winds reaching up to 30 knots in the late evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres through the Backstairs Passage by early evening.
1st Swell
West to southwesterly 1 to 2 metres.
Weather
Partly cloudy. The chance of a thunderstorm later this evening.
Weather Situation
A trough lies near the western border ahead of a cold front moving across the Bight, while a weak ridge of high pressure lies across central Australia. The front and trough will move across SA overnight and into southeastern Australia on Saturday, with a ridge of high pressure developing across SA in its wake. A trough is expected to develop near the western border on Sunday and remain near stationary nearly next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Yankalilla Bay Temperature Statistics View More

September Temperature

Parawa West (Second Valley Forest) (9km)

  • Lowest 2 September, 2026

    7.5 °C

  • Average September

    11.3 °C

  • Highest 1 September, 2026

    16.6 °C

Climate (2021–2026)

Parawa West (Second Valley Forest) (9km)

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  • Average Low 2021–2026

    10.5 °C

  • Average 2021–2026

    13.5 °C

  • Average High 2021–2026

    17.7 °C
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