Haystack Island Weather Forecast

    • 9
    • 16

    Mostly sunny

    • 9
    • 20

    Sunny

    • 13
    • 22

    Sunny

    • 15
    • 21

    Wind easing. Partly cloudy

    • 11
    • 15

    Cloudy

    • 9
    • 17

    Mostly sunny

    • 11
    • 19

    Partly cloudy

Today 17 Sep Yorke Peninsula

Sunny. Light winds. Daytime maximum temperatures between 16 and 20.

Investigator Strait Coastal Waters

Wind
East to northeasterly about 10 knots.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 1 metre, increasing to 1 to 2 metres through the Backstairs Passage.
Weather
Mostly sunny.
Weather Situation
A strong high pressure system south of the state will maintain a ridge across SA for the next few days as it drifts eastwards, to be located over NSW from Friday. A cold front is then likely to approach from the west late Saturday and move across SA on Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Haystack Island Temperature Statistics View More

September Temperature

Stenhouse Bay (5km)

  • Lowest 8 September, 2026

    8.9 °C

  • Average September

    14 °C

  • Highest 12 September, 2026

    25.2 °C

Climate (2021–2026)

Stenhouse Bay (5km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    13.2 °C

  • Average 2021–2026

    16.1 °C

  • Average High 2021–2026

    20.5 °C
Get WillyWeather+ to remove ads