Haystack Island Weather Forecast

    • 19
    • 33

    Clear

    • 17
    • 22

    Becoming windy. Partly cloudy

    • 14
    • 22

    Partly cloudy

    • 15
    • 22

    Showers easing. Windy

    • 14
    • 21

    Partly cloudy

    • 15
    • 21

    Partly cloudy

    • 14
    • 21

    Cloudy

Today 18 Dec Yorke Peninsula

Sunny. Winds north to northwesterly 25 to 35 km/h tending northwest to southwesterly 20 to 30 km/h in the early afternoon then tending southeast to southwesterly 15 to 25 km/h in the evening. Daytime maximum temperatures 37 to 42.

Extreme Fire Danger Rating

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Investigator Strait Coastal Waters

Wind
Northwest to southwesterly 10 to 15 knots becoming variable below 10 knots in the late evening.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 1 metre.
Weather
Clear.
Weather Situation
A trough of low pressure lingers about the northeast of SA this evening, as another trough of low pressure develops over the west. This broad area of low pressure is expected to slowly extend a trough across the state from the west during Friday and Saturday, before contracting to the far northeast on Sunday evening. Behind this, a ridge of high pressure moves over the west and south during Sunday, persisting throughout SA by late Monday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Haystack Island Temperature Statistics View More

December Temperature

Stenhouse Bay (5km)

  • Lowest 3 December, 2025

    9.1 °C

  • Average December

    18.1 °C

  • Highest 3 December, 2025

    33.4 °C

Climate (2020–Present)

Stenhouse Bay (5km)

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  • Average Low 2020–2025

    13.1 °C

  • Average 2020–2025

    16 °C

  • Average High 2020–2025

    20.4 °C
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