Marion Bay Weather Forecast
- 11
- 19
Partly cloudy
- 13
- 19
Partly cloudy
- 11
- 20
Sunny
- 13
- 26
Sunny
- 16
- 21
Showers
- 12
- 18
Shower or two
- 12
- 19
Shower or two
Today 5 Oct Yorke Peninsula
Cloud clearing. Light winds becoming westerly 15 to 20 km/h in the middle of the day then becoming light in the late afternoon. Daytime maximum temperatures in the low 20s.
Investigator Strait Coastal Waters
- Wind
- Variable about 10 knots becoming west to northwesterly 10 to 15 knots in the early afternoon.
- Seas
- Below 1 metre.
- 1st Swell
- West to southwesterly around 1 metre, increasing to 1 to 1.5 metres inshore.
- Weather
- Cloud clearing.
- Weather Situation
- A high pressure system south of SA extends a ridge over the state. A cold front is forecast to pass over the southeast early Tuesday, followed quickly by a high pressure system that is expected to pass over the south of the state later Tuesday and on Wednesday, maintaining a ridge over the state. Another cold front is expected to start moving across the Bight later in the week
Marion Bay Temperature Statistics View More
October Temperature
Stenhouse Bay (6 km)
Lowest 3 October, 2026
12 °CAverage October
14.8 °CHighest 1 October, 2026
21 °C
Climate (2021–2026)
Stenhouse Bay (6 km)
Average Low 2021–2026
13.2 °CAverage 2021–2026
16.1 °CAverage High 2021–2026
20.5 °C