Haystack Island Weather Forecast

    • 14
    • 20

    Cloudy

    • 13
    • 23

    Mostly sunny

    • 17
    • 22

    Partly cloudy

    • 15
    • 20

    Partly cloudy

    • 14
    • 24

    Mostly sunny

    • 17
    • 22

    Possible shower

    • 15
    • 22

    Mostly sunny

Today 17 Apr Yorke Peninsula

Partly cloudy. The chance of fog in the north early this morning. Winds south to southeasterly 15 to 25 km/h tending east to southeasterly 15 to 20 km/h during the afternoon and evening. Daytime maximum temperatures in the low to mid 20s.

Investigator Strait Coastal Waters

Wind
Southerly 10 to 15 knots turning east to southeasterly in the late morning and early afternoon.
Seas
Around 1 metre.
1st Swell
West to southwesterly 1 to 1.5 metres, decreasing to around 1 metre later in the evening.
Weather
Cloudy.
Weather Situation
A high pressure system south of the Bight extends a ridge over SA. The high will move east during today and Saturday ahead of a weakening trough that is expected to brush the west and south on the weekend. The high is forecast to be over the Tasman Sea by Monday, extending a ridge over South Australia through until Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Haystack Island Temperature Statistics View More

April Temperature

Cape Borda (55km)

  • Lowest 8 April, 2026

    9.4 °C

  • Average April

    15.5 °C

  • Highest 4 April, 2026

    22.2 °C

Climate (2021–Present)

Cape Borda (55km)

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  • Average Low 2021–2026

    11.7 °C

  • Average 2021–2026

    14.9 °C

  • Average High 2021–2026

    18.9 °C
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