Port Bonython Weather Forecast

    • 8
    • 17

    Partly cloudy

    • 8
    • 17

    Partly cloudy

    • 7
    • 20

    Partly cloudy

    • 10
    • 18

    Rain

    • 10
    • 16

    Shower or two

    • 6
    • 18

    Partly cloudy

    • 9
    • 21

    Shower or two

Today 21 Aug Whyalla

Partly cloudy. Light winds becoming southeast to southwesterly 15 to 20 km/h in the morning then becoming light in the late afternoon.

Spencer Gulf Coastal Waters

Wind
West to southwesterly 10 to 15 knots decreasing to about 10 knots in the late afternoon.
Seas
Below 1 metre.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Weather
Cloudy.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Bonython Temperature Statistics View More

August Temperature

Whyalla Airport (24km)

  • Lowest 1 August, 2026

    -0.4 °C

  • Average August

    12.4 °C

  • Highest 7 August, 2026

    21.4 °C

Climate (2021–2026)

Whyalla Airport (24km)

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  • Average Low 2021–2026

    12 °C

  • Average 2021–2026

    17.6 °C

  • Average High 2021–2026

    23.8 °C
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