Haystack Island Weather Forecast
- 14
- 20
Partly cloudy
- 13
- 23
Sunny
- 17
- 22
Partly cloudy
- 14
- 20
Partly cloudy
- 14
- 24
Mostly sunny
- 17
- 22
Cloud clearing
- 15
- 23
Sunny
Today 17 Apr Yorke Peninsula
Mostly clear. Winds southeasterly 15 to 25 km/h.
Investigator Strait Coastal Waters
- Wind
- Southeasterly 10 to 15 knots turning easterly in the evening.
- Seas
- Around 1 metre.
- 1st Swell
- West to southwesterly around 1 metre, increasing to 1 to 1.5 metres inshore.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system south of the Bight extends a ridge over SA. The high will slowly move east over the weekend ahead of a cold front which will slip to the south of SA and weaken. The high will remain near stationary in the southern Tasman Sea, maintaining a ridge across the state early next week.
Haystack Island Temperature Statistics View More
April Temperature
Cape Borda (55km)
Lowest 8 April, 2026
9.4 °CAverage April
15.5 °CHighest 4 April, 2026
22.2 °C
Climate (2021–Present)
Cape Borda (55km)
Average Low 2021–2026
11.7 °CAverage 2021–2026
14.9 °CAverage High 2021–2026
18.9 °C