Haystack Island Weather Forecast
- 13
- 21
Mostly clear
- 14
- 22
Mostly sunny
- 14
- 23
Sunny
- 15
- 22
Showers
- 15
- 20
Showers
- 14
- 19
Shower or two
- 13
- 20
Shower or two
Today 12 May Yorke Peninsula
Mostly clear. Winds easterly 15 to 20 km/h.
Investigator Strait Coastal Waters
- Wind
- East to southeasterly below 10 knots.
- Seas
- Below 1 metre.
- 1st Swell
- West to southwesterly below 1 metre.
- Weather
- Mostly clear.
- Weather Situation
- A strong high pressure system near Tasmania is slowly moving east, reaching the Tasman Sea by tomorrow. A trough of low pressure moves into the far west late on Friday and continues across SA over the weekend.
Haystack Island Temperature Statistics View More
May Temperature
Stenhouse Bay (5km)
Lowest 3 May, 2026
11.4 °CAverage May
16.1 °CHighest 1 May, 2026
28.9 °C
Climate (2021–Present)
Stenhouse Bay (5km)
Average Low 2021–2026
13.1 °CAverage 2021–2026
16.1 °CAverage High 2021–2026
20.5 °C