Haystack Island Weather Forecast

    • 19
    • 25

    Becoming windy. Mostly sunny

    • 18
    • 26

    Wind easing. Partly cloudy

    • 19
    • 28

    Partly cloudy

    • 19
    • 24

    Partly cloudy

    • 16
    • 22

    Becoming windy. Partly cloudy

    • 15
    • 22

    Wind easing. Cloud clearing

    • 15
    • 24

    Sunny

Today 28 Jan Yorke Peninsula

Sunny. Winds southeasterly 30 to 45 km/h. Daytime maximum temperatures 27 to 34.

Investigator Strait Coastal Waters

Wind
Southeasterly 15 to 25 knots, reaching up to 30 knots in the evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the afternoon.
1st Swell
West to southwesterly 1 to 1.5 metres.
Weather
Mostly sunny.
Weather Situation
A trough over western and central parts of the SA continues to move across the south before contracting and lingering inland. A high pressure system moves over waters south of the Bight on Wednesday, reaching the Tasman Sea on Thursday. Another high pressure system building over over waters well south of SA extends a south to southeasterly flow over southern SA late Saturday.
Graph Plots Open in Graphs

  • 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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