Haystack Island Weather Forecast
- 10
- 16
Shower or two
- 10
- 16
Shower or two
- 10
- 18
Possible shower
- 11
- 17
Partly cloudy
- 9
- 20
Shower or two
- 12
- 18
Shower or two
- 11
- 19
Possible shower
Today 31 Aug Yorke Peninsula
Cloudy. Medium chance of showers, most likely in the late morning and afternoon. Winds westerly 15 to 25 km/h becoming light in the evening. Daytime maximum temperatures around 15.
Investigator Strait Coastal Waters
- Wind
- Westerly about 10 knots increasing to 15 to 20 knots in the early morning then decreasing to about 10 knots in the late evening.
- Seas
- Around 1 metre.
- 1st Swell
- West to southwesterly below 1 metre.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system has been moving slowly eastwards to be over South Australia from today through to Wednesday. A westerly flow will continue for coastal areas of SA on the southern flank of the high pressure system.
Haystack Island Temperature Statistics View More
August Temperature
Stenhouse Bay (5km)
Lowest 3 August, 2025
5.5 °CAverage August
12.7 °CHighest 11 August, 2025
20.1 °C
Climate (2020–Present)
Stenhouse Bay (5km)
Average Low 2020–2025
13.1 °CAverage 2020–2025
16 °CAverage High 2020–2025
20.5 °C