Yankalilla Bay Weather Forecast
- 12
- 16
Shower
- 10
- 14
Shower
- 9
- 12
Cloudy
- 8
- 12
Cloudy
- 6
- 13
Sunny
- 8
- 17
Sunny
- 10
- 19
Sunny
Today 13 Sep Mount Lofty Ranges
Cloudy. Very high chance of showers, becoming less likely in the afternoon. The chance of a thunderstorm in the late morning and afternoon. Winds northwesterly 25 to 35 km/h turning westerly in the middle of the day then decreasing to 15 to 25 km/h in the evening. Daytime maximum temperatures between 18 and 21.
Investigator Strait Coastal Waters
- Wind
- Westerly 15 to 25 knots decreasing to 10 to 15 knots in the evening.
- Seas
- 1 to 2 metres, decreasing to 1 metre later in the evening.
- 1st Swell
- West to southwesterly around 1 metre.
- Weather
- Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the late morning.
- Weather Situation
- A trough will move across SA today ahead of a high pressure ridge that will build in the wake. A cold front will then slip across southern coasts late Monday and early Tuesday, before the high moves across waters to the south to be centred over Victoria by Thursday.
Yankalilla Bay Temperature Statistics View More
September Temperature
Parawa West (Second Valley Forest) (9km)
Lowest 8 September, 2026
5.2 °CAverage September
10.9 °CHighest 11 September, 2026
17.4 °C
Climate (2021–2026)
Parawa West (Second Valley Forest) (9km)
Average Low 2021–2026
10.5 °CAverage 2021–2026
13.5 °CAverage High 2021–2026
17.7 °C