Yankalilla Bay Weather Forecast

    • 13
    • 18

    Partly cloudy

    • 11
    • 13

    Shower

    • 8
    • 13

    Partly cloudy

    • 9
    • 21

    Partly cloudy

    • 15
    • 24

    Partly cloudy

    • 13
    • 18

    Shower

    • 10
    • 20

    Shower

Today 25 Sep Mount Lofty Ranges

Partly cloudy. Medium chance of showers about the southern Fleurieu Peninsula, slight chance elsewhere. Light winds becoming south to southwesterly 15 to 20 km/h in the late afternoon then becoming light in the evening. Daytime maximum temperatures in the low to mid 20s.

Investigator Strait Coastal Waters

Wind
Variable about 10 knots becoming southeasterly 10 to 15 knots in the early afternoon.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 1 metre.
Weather
Partly cloudy. 60% chance of showers. The chance of a thunderstorm from late this morning.
Weather Situation
A low pressure trough extends from WA over western SA. This trough will be very slow-moving for the rest of this week and over the weekend. A weakening cold front will slip across southern coasts during today. Another low pressure trough will develop over WA on Sunday and Monday then move over SA early to mid 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 17 September, 2026

    4.3 °C

  • Average September

    11.6 °C

  • Highest 19 September, 2026

    20.5 °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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