Haystack Island Weather Forecast

    • 13
    • 21

    Clear

    • 13
    • 23

    Mostly sunny

    • 15
    • 25

    Partly cloudy

    • 17
    • 26

    Partly cloudy

    • 18
    • 26

    Sunny

    • 17
    • 24

    Showers. Becoming windy

    • 13
    • 21

    Showers. Windy

Today 27 Apr Yorke Peninsula

Clear. Winds southeasterly 15 to 20 km/h becoming light in the late evening.

Investigator Strait Coastal Waters

Wind
East to southeasterly 10 to 15 knots decreasing to about 10 knots in the late evening.
Seas
Below 1 metre.
1st Swell
West to southwesterly around 1 metre, increasing to 1 to 1.5 metres inshore.
Weather
Clear.
Weather Situation
A strong high pressure system over the Tasman Sea extends a ridge across South Australia through to Friday. Northerly winds freshen on Friday ahead of a trough that is forecast to move across the far west Friday afternoon, then continue across the state during the weekend.
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  • 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

    17.6 °C

  • Highest 21 April, 2026

    30.6 °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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