Haystack Island Weather Forecast

    • 14
    • 24

    Showers. Becoming windy

    • 13
    • 19

    Showers. Windy

    • 13
    • 19

    Showers easing. Wind easing

    • 13
    • 19

    Cloudy

    • 13
    • 19

    Showers. Becoming windy

    • 10
    • 16

    Possible shower. Wind easing

    • 12
    • 19

    Shower or two

Today 2 May Yorke Peninsula

Partly cloudy. Very high chance of showers, becoming less likely late this afternoon and evening. The chance of a thunderstorm during the morning and afternoon. Winds north to northeasterly 25 to 30 km/h turning northwesterly 25 to 40 km/h during the morning. Daytime maximum temperatures in the mid 20s.

Investigator Strait Coastal Waters

Wind
Northerly 15 to 25 knots turning northwesterly 20 to 25 knots in the morning. Winds reaching up to 30 knots during the day.
Seas
1.5 to 2.5 metres.
1st Swell
West to southwesterly around 1 metre, increasing to 1.5 to 2.5 metres during the afternoon.
Weather
Cloudy. 95% chance of showers. The chance of a thunderstorm during the morning and afternoon.
Weather Situation
A strong high pressure system over the Tasman Sea extends northerly winds over SA. Winds will freshen ahead of a front that is forecast to move across the far west today then continue across the state during the weekend. The low pressure system associated with this front is expected to linger over waters to the south of the state and extend a trough over southern parts later Sunday and Monday. The low will then move over Bass Strait later Monday. A ridge will extend across SA from the west on Tuesday and a cold front will move across the south later Wednesday.
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 1 May, 2026

    18.4 °C
  • Average May

    20.8 °C
  • Highest

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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