Port Bonython Weather Forecast

    • 16
    • 32

    Mostly sunny

    • 20
    • 22

    Rain

    • 19
    • 25

    Shower or two

    • 20
    • 26

    Partly cloudy

    • 19
    • 27

    Mostly sunny

    • 18
    • 29

    Sunny

    • 19
    • 27

    Sunny

Today 15 Mar Whyalla

Mostly sunny. Light winds becoming southeasterly 15 to 25 km/h in the early afternoon then tending southerly 25 to 30 km/h in the late afternoon.

Spencer Gulf Coastal Waters

Wind
East to southeasterly 10 to 15 knots becoming variable about 10 knots in the middle of the day then becoming south to southwesterly 15 to 20 knots in the early afternoon.
Seas
Around 1 metre, increasing to 1 to 1.5 metres north of Cowell to Wallaroo by early evening.
1st Swell
South to southwesterly around 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.
Weather
Partly cloudy.
Weather Situation
A trough over inland WA is expected to move across western and northern SA today and continue northeast early in the week. A ridge of high pressure persists over the south. A cold front clips the southeast early next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Bonython Temperature Statistics View More

March Temperature

Whyalla Airport (24km)

  • Lowest 14 March, 2026

    10.8 °C

  • Average March

    20.5 °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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