Whyalla Barson Weather Forecast

    • 15
    • 29

    Showers

    • 10
    • 20

    Showers easing

    • 6
    • 19

    Partly cloudy

    • 8
    • 27

    Sunny

    • 10
    • 22

    Shower or two

    • 8
    • 19

    Cloudy

    • 9
    • 18

    Cloud clearing

Today 15 Sep Whyalla

Cloudy. High chance of showers. The chance of a thunderstorm. Winds southwesterly 20 to 30 km/h becoming light in the late evening.

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Whyalla Barson Temperature Statistics View More

September Temperature

Whyalla Airport (9km)

  • Lowest 1 September, 2025

    2.8 °C

  • Average September

    14.7 °C

  • Highest 6 September, 2025

    33.8 °C

Climate (2020–Present)

Whyalla Airport (9km)

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  • Average Low 2020–2025

    11.9 °C

  • Average 2020–2025

    17.5 °C

  • Average High 2020–2025

    23.8 °C
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