Haystack Island Weather Forecast

    • 13
    • 18

    Possible shower

    • 14
    • 19

    Cloudy

    • 14
    • 20

    Partly cloudy

    • 14
    • 20

    Partly cloudy

    • 14
    • 21

    Partly cloudy

    • 15
    • 21

    Partly cloudy

    • 14
    • 19

    Partly cloudy

Today 11 Apr Yorke Peninsula

Cloudy. Medium chance of showers, becoming less likely late this afternoon and evening. Winds southwesterly 25 to 40 km/h. Daytime maximum temperatures around 19.

Investigator Strait Coastal Waters

Wind
Southwesterly 15 to 25 knots.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres around midday.
1st Swell
West to southwesterly 1 to 2 metres, decreasing to 1 to 1.5 metres around midday.
Weather
Cloudy.
Weather Situation
A high pressure system south of WA extends a ridge over South Australia. This ridge will persist over SA this weekend as the high moves slowly east to be south of the Bight by tomorrow night. The high is forecast to weaken and step back to the west early next week allowing a trough to pass over the southeast Tuesday night.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Haystack Island Temperature Statistics View More

April Temperature

Stenhouse Bay (5km)

  • Lowest 8 April, 2026

    11.3 °C

  • Average April

    17.4 °C

  • Highest 6 April, 2026

    25.2 °C

Climate (2021–Present)

Stenhouse Bay (5km)

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  • Average Low 2021–2026

    13.1 °C

  • Average 2021–2026

    16.1 °C

  • Average High 2021–2026

    20.5 °C
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