Haystack Island Weather Forecast

    • 19
    • 25

    Partly cloudy

    • 16
    • 23

    Cloudy

    • 15
    • 22

    Cloud clearing

    • 16
    • 25

    Sunny

    • 16
    • 25

    Mostly sunny

    • 16
    • 23

    Cloud clearing

    • 16
    • 24

    Mostly sunny

Today 31 Jan Yorke Peninsula

Partly cloudy. Slight chance of a shower. Winds southerly 30 to 45 km/h. Daytime maximum temperatures 26 to 34.

Investigator Strait Coastal Waters

Wind
Southerly 15 to 25 knots.
Seas
1 to 2 metres.
1st Swell
West to southwesterly below 1 metre.
Weather
Partly cloudy. The chance of a thunderstorm early this evening.
Weather Situation
A high pressure system moves into the Bight, with a south to southeasterly flow expected to develop across the entire state by Sunday. The high continues to move eastwards, maintaining a ridge over southern parts on Monday and Tuesday. A new high pressure ridge, extending from a high centred to the southwest of WA, is expected over much of SA during Wednesday.
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  • 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

    20.3 °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

    20.5 °C
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