Port Bonython Weather Forecast

    • 11
    • 17

    Cloudy

    • 10
    • 19

    Possible shower

    • 12
    • 19

    Shower or two

    • 11
    • 19

    Partly cloudy

    • 10
    • 20

    Mostly sunny

    • 10
    • 22

    Partly cloudy

    • 12
    • 22

    Shower or two

Today 7 May Whyalla

Cloudy. Winds southerly 20 to 30 km/h decreasing to 15 to 20 km/h in the late evening.

Spencer Gulf Coastal Waters

Wind
Southerly 10 to 15 knots, reaching up to 20 knots north of Cowell to Wallaroo during the afternoon and evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres north of Cowell to Wallaroo.
1st Swell
South to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres south of Cowell to Wallaroo.
Weather
Cloudy.
Weather Situation
A high pressure system south of Western Australia will move slowly eastwards south of the Bight during the next few days. The high will then move eastwards early next week to be centred southeast of Tasmania late Tuesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Bonython Temperature Statistics View More

May Temperature

Whyalla Airport (24km)

  • Lowest 5 May, 2026

    8 °C
  • Average May

    16 °C
  • Highest 1 May, 2026

    30.7 °C

Climate (2021–Present)

Whyalla Airport (24km)

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  • Average Low 2021–2026

    12 °C
  • Average 2021–2026

    17.5 °C
  • Average High 2021–2026

    23.8 °C
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