Willyama Beach Weather Forecast

    • 9
    • 16

    Clear

    • 9
    • 20

    Sunny

    • 13
    • 22

    Sunny

    • 15
    • 21

    Windy. Partly cloudy

    • 11
    • 15

    Cloudy

    • 9
    • 17

    Mostly sunny

    • 11
    • 19

    Partly cloudy

Today 17 Sep Yorke Peninsula

Clear. Light winds.

Investigator Strait Coastal Waters

Wind
East to northeasterly below 10 knots.
Seas
Below 0.5 metres.
1st Swell
West to southwesterly below 1 metre, increasing to 1 to 1.5 metres through the Backstairs Passage.
Weather
Clear.
Weather Situation
A strong high pressure system centred over Victoria will maintain a ridge across SA as it drifts slowly over NSW from Friday. A cold front will then approach from the west late Saturday and move across SA on Sunday, before another ridge pushes in behind the front. The associated high will then move eastwards across waters south from Monday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Willyama Beach Temperature Statistics View More

September Temperature

Stenhouse Bay (4km)

  • Lowest 8 September, 2026

    8.9 °C

  • Average September

    14 °C

  • Highest 12 September, 2026

    25.2 °C

Climate (2021–2026)

Stenhouse Bay (4km)

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  • Average Low 2021–2026

    13.2 °C

  • Average 2021–2026

    16.1 °C

  • Average High 2021–2026

    20.5 °C
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