Port Bonython Weather Forecast

    • 19
    • 25

    Sunny

    • 19
    • 25

    Partly cloudy

    • 18
    • 25

    Sunny

    • 17
    • 28

    Sunny

    • 18
    • 29

    Sunny

    • 18
    • 27

    Mostly sunny

    • 18
    • 26

    Partly cloudy

Today 19 Mar Whyalla

Sunny. Winds southerly 25 to 35 km/h.

Spencer Gulf Coastal Waters

Wind
South to southeasterly 15 to 20 knots, reaching up to 25 knots north of Cowell to Wallaroo in the evening.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning, increasing to 1 to 2 metres north of Cowell to Wallaroo during the afternoon.
1st Swell
South to southwesterly around 1 metre.
Weather
Partly cloudy.
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  • Temperature Forecast Bureau of Meteorology

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Port Bonython Temperature Statistics View More

March Temperature

Whyalla Airport (24km)

  • Lowest 14 March, 2026

    10.8 °C

  • Average March

    20.8 °C

  • Highest 10 March, 2026

    34.9 °C

Climate (2021–Present)

Whyalla Airport (24km)

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  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    17.5 °C

  • Average High 2021–2026

    23.8 °C
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