Marion Bay Weather Forecast
- 10
- 16
Cloudy
- 9
- 17
Cloud clearing
- 10
- 20
Sunny
- 13
- 23
Sunny
- 14
- 20
Partly cloudy
- 12
- 17
Partly cloudy
- 11
- 17
Partly cloudy
Today 16 Sep Yorke Peninsula
Partly cloudy. Winds southeasterly 15 to 25 km/h. Overnight temperatures falling to between 3 and 9 with daytime temperatures reaching around 16.
Investigator Strait Coastal Waters
- Wind
- Southeasterly 10 to 15 knots, reaching up to 20 knots through the Backstairs Passage early in the morning.
- Seas
- Around 1 metre.
- 1st Swell
- West to southwesterly 1 to 1.5 metres, increasing to 1 to 2 metres through the Backstairs Passage around midday.
- Weather
- Cloudy.
Marion Bay Temperature Statistics View More
September Temperature
Stenhouse Bay (6km)
Lowest 8 September, 2026
8.9 °CAverage September
14.1 °CHighest 12 September, 2026
25.2 °C
Climate (2021–2026)
Stenhouse Bay (6km)
Average Low 2021–2026
13.2 °CAverage 2021–2026
16.1 °CAverage High 2021–2026
20.5 °C