Haystack Island Weather Forecast

    • 14
    • 22

    Mostly sunny

    • 14
    • 23

    Sunny

    • 15
    • 22

    Showers

    • 15
    • 20

    Showers

    • 14
    • 19

    Shower or two

    • 13
    • 20

    Shower or two

    • 14
    • 20

    Shower or two

Today 13 May Yorke Peninsula

Mostly sunny. Slight chance of a shower in the north, near zero chance elsewhere. The chance of a thunderstorm in the north in the late morning and afternoon. Winds easterly 15 to 25 km/h. Overnight temperatures falling to around 12 with daytime temperatures reaching the low to mid 20s.

Investigator Strait Coastal Waters

Wind
Easterly about 10 knots increasing to 10 to 15 knots in the late afternoon then tending northeasterly in the late evening.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 1 metre.
Weather
Mostly sunny.
Weather Situation
A strong high pressure system near Tasmania is slowly moving east, reaching the Tasman Sea later today. A trough of low pressure moves into the far west late on Friday and continues across SA over the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Haystack Island Temperature Statistics View More

May Temperature

Stenhouse Bay (5km)

  • Lowest 3 May, 2026

    11.4 °C

  • Average May

    16.1 °C

  • Highest 1 May, 2026

    28.9 °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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