Haystack Island Weather Forecast
- 13
- 22
Shower or two. Windy
- 13
- 18
Rain easing
- 10
- 17
Partly cloudy
- 10
- 18
Showers
- 13
- 19
Showers
- 13
- 17
Showers
- 10
- 16
Showers
Today 12 Jun Yorke Peninsula
Partly cloudy. Slight chance of a shower, most likely later tonight. Winds northerly 30 to 45 km/h. Daytime maximum temperatures in the low 20s.
Investigator Strait Coastal Waters
- Wind
- Northeasterly 15 to 20 knots turning northerly 20 to 25 knots in the early morning. Winds reaching up to 30 knots during the day.
- Seas
- Around 1 metre, increasing to 1.5 to 2.5 metres during the morning.
- 1st Swell
- West to southwesterly 1 to 2 metres, decreasing to 1 to 1.5 metres around midday, then increasing to 1 to 2 metres later in the evening.
- Weather
- Cloudy. 50% chance of showers.
- Weather Situation
- A high pressure system in the Tasman Sea maintains a ridge over SA. A cold front will move across the Bight on Friday with a weak high pressure system developing over southern Australia over the weekend. A trough of low pressure moves into the far west on Monday as an associated low pressure system moves into the Bight.
Haystack Island Temperature Statistics View More
June Temperature
Stenhouse Bay (5km)
Lowest 11 June, 2026
8.2 °CAverage June
13.6 °CHighest 1 June, 2026
19.9 °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