Marion Bay Weather Forecast
- 9
- 15
Cloudy
- 8
- 15
Partly cloudy
- 8
- 15
Partly cloudy
- 9
- 16
Showers
- 10
- 15
Cloudy
- 9
- 15
Cloudy
- 8
- 16
Possible shower
Today 30 Jul Yorke Peninsula
Partly cloudy. Slight chance of a shower. Light winds. Daytime maximum temperatures around 15.
Investigator Strait Coastal Waters
- Wind
- Variable below 10 knots.
- Seas
- Below 0.5 metres.
- 1st Swell
- West to southwesterly around 1 metre.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system centred over the Bight will slowly move east into the Tasman Sea by late Saturday. A cold front is forecast to move across the Bight on Saturday before moving across the southeast of SA on Sunday.
Marion Bay Temperature Statistics View More
July Temperature
Stenhouse Bay (6km)
Lowest 17 July, 2026
4.2 °CAverage July
12.4 °CHighest 18 July, 2026
18.4 °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