Yankalilla Bay Weather Forecast

    • 13
    • 19

    Shower

    • 12
    • 17

    Shower

    • 9
    • 14

    Shower

    • 8
    • 13

    Partly cloudy

    • 8
    • 15

    Cloudy

    • 8
    • 16

    Cloudy

    • 9
    • 14

    Shower

Today 30 Sep Mount Lofty Ranges

Partly cloudy. Medium chance of showers, most likely in the evening. The chance of a thunderstorm. Winds northwesterly 15 to 20 km/h becoming light in the early afternoon. Daytime maximum temperatures in the low to mid 20s.

Investigator Strait Coastal Waters

Wind
Variable about 10 knots.
Seas
Below 1 metre.
1st Swell
West to southwesterly around 1 metre.
Weather
Partly cloudy. 60% chance of showers. The chance of a thunderstorm.
Weather Situation
A series of slow moving troughs will move across the state today and Thursday as a couple of cold fronts move across waters to the south. A high pressure system will become established south of the Bight during Friday and persist there on Saturday. A trough will extend from WA over the far west of SA over the weekend.
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 17 September, 2026

    4.3 °C

  • Average September

    12.1 °C

  • Highest 24 September, 2026

    23.5 °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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