Haystack Island Weather Forecast

    • 10
    • 16

    Showers. Windy

    • 12
    • 17

    Showers. Becoming windy

    • 12
    • 17

    Shower or two

    • 10
    • 15

    Partly cloudy

    • 8
    • 15

    Cloud clearing

    • 8
    • 16

    Cloud clearing

    • 9
    • 16

    Sunny

Today 12 Jul Yorke Peninsula

Cloudy. High chance of showers in the south, medium chance elsewhere. Winds westerly 25 to 35 km/h turning northwesterly 20 to 30 km/h in the late evening. Daytime maximum temperatures around 15.

Investigator Strait Coastal Waters

Wind
Westerly 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 1.5 to 2.5 metres.
Weather
Cloudy. 70% chance of showers.
Weather Situation
A cold front moving across the southeast will continue into the Tasman Sea today as a ridge of high pressure begins to build over northern SA. A second front will pass across southeastern SA on Monday before the high begins to dominate the weather pattern across SA mid next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Haystack Island Temperature Statistics View More

July Temperature

Stenhouse Bay (5km)

  • Lowest 9 July, 2026

    7.8 °C

  • Average July

    12.5 °C

  • Highest 10 July, 2026

    17.8 °C

Climate (2021–2026)

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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