Yankalilla Bay Weather Forecast

    • 12
    • 20

    Shower

    • 12
    • 17

    Shower

    • 11
    • 14

    Shower

    • 9
    • 15

    Partly cloudy

    • 9
    • 18

    Partly cloudy

    • 12
    • 21

    Shower

    • 12
    • 19

    Shower

Today 24 Sep Mount Lofty Ranges

Partly cloudy. Medium chance of showers in the south, most likely in the morning. Near zero chance of rain elsewhere. Winds north to northeasterly 15 to 20 km/h tending north to northwesterly in the morning then becoming light in the evening. Daytime maximum temperatures in the low to mid 20s.

Investigator Strait Coastal Waters

Wind
North to northeasterly 10 to 15 knots, reaching up to 20 knots through the Backstairs Passage during the morning. Winds becoming variable below 10 knots in the late afternoon.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 1 metre.
Weather
Cloudy. 60% chance of showers.
Weather Situation
A high pressure system centred over the Tasman Sea extends a ridge westwards over central and eastern SA and a low pressure trough extends from WA over western SA. This trough will be very slow-moving for the rest of the week and over the weekend and the ridge will move away to the east. A weakening cold front will slip across southern coasts late Thursday and early Friday.
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

    11.2 °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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