Yankalilla Bay Weather Forecast
- 8
- 13
Cloudy
- 9
- 21
Partly cloudy
- 17
- 25
Partly cloudy
- 13
- 18
Shower
- 11
- 17
Shower
- 8
- 14
Partly cloudy
- 8
- 14
Partly cloudy
Today 27 Sep Mount Lofty Ranges
Partly cloudy. Slight chance of a shower in the south this morning. Near zero chance of rain elsewhere. Winds east to southeasterly 25 to 40 km/h. Daytime maximum temperatures between 15 and 19.
Investigator Strait Coastal Waters
- Wind
- East to southeasterly 15 to 25 knots, reaching up to 30 knots inshore early in the morning.
- Seas
- 1.5 to 2.5 metres.
- 1st Swell
- West to southwesterly 1 to 1.5 metres, decreasing to around 1 metre around midday.
- Weather
- Cloudy.
- Weather Situation
- A trough over central Australia will weaken and contract into WA as a ridge of high pressure extends across southern SA today. The high pressure system is expected to drift into the Tasman Sea by Tuesday as the trough in WA begins to re-extend over western SA on Tuesday, pushing into the state on Wednesday.
Yankalilla Bay Temperature Statistics View More
September Temperature
Parawa West (Second Valley Forest) (9km)
Lowest 17 September, 2026
4.3 °CAverage September
11.8 °CHighest 25 September, 2026
21.7 °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