Haystack Island Weather Forecast

    • 18
    • 26

    Wind easing. Partly cloudy

    • 20
    • 28

    Mostly sunny

    • 19
    • 24

    Becoming windy. Partly cloudy

    • 16
    • 22

    Becoming windy. Partly cloudy

    • 15
    • 22

    Mostly sunny

    • 16
    • 25

    Sunny

    • 16
    • 23

    Sunny

Today 29 Jan Yorke Peninsula

Cloud clearing. Winds southeasterly 25 to 40 km/h. Daytime maximum temperatures 28 to 41.

Investigator Strait Coastal Waters

Wind
Southeasterly 20 to 25 knots, reaching up to 30 knots in the late morning and early afternoon.
Seas
1.5 to 2.5 metres.
1st Swell
West to southwesterly around 1 metre.
Weather
Partly cloudy.
Weather Situation
A trough over northern parts of the SA will drift south again later this week as a high pressure system moves east into the Tasman Sea. The trough is forecast to move to the northeast on Saturday as a strong high pressure system extends a ridge into the Bight, with a south to southeasterly flow developing across the entire state by Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Haystack Island Temperature Statistics View More

January Temperature

Stenhouse Bay (5km)

  • Lowest 1 January, 2026

    14.1 °C

  • Average January

    20.2 °C

  • Highest 7 January, 2026

    41.1 °C

Climate (2021–Present)

Stenhouse Bay (5km)

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  • Average Low 2021–2026

    13.1 °C

  • Average 2021–2026

    16 °C

  • Average High 2021–2026

    20.4 °C
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