Port Bonython Weather Forecast

    • 11
    • 20

    Partly cloudy

    • 11
    • 20

    Mostly sunny

    • 10
    • 21

    Partly cloudy

    • 12
    • 23

    Partly cloudy

    • 10
    • 21

    Partly cloudy

    • 8
    • 23

    Sunny

    • 10
    • 28

    Sunny

Today 2 Oct Whyalla

Partly cloudy. Slight chance of a shower. Winds southwesterly 20 to 30 km/h tending southerly 25 to 40 km/h in the middle of the day.

Spencer Gulf Coastal Waters

Wind
Southerly 15 to 20 knots, reaching up to 25 knots north of Cowell to Wallaroo in the afternoon.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres north of Cowell to Wallaroo during the afternoon.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Weather
Partly cloudy.
Weather Situation
A low pressure trough in the north and east is slowly moving east. Another trough in the southeast with a low pressure system developing near the Victorian border during today will also slowly move east. In the west, a high pressure system will move into the Bight and slowly move east to be centred over Victoria on Monday, while extending a ridge into parts of the state. Another trough near the WA border is expected to develop from Saturday and extend into the state before weakening by Monday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Bonython Temperature Statistics View More

October Temperature

Whyalla Airport (24km)

  • Lowest 1 October, 2026

    17.2 °C
  • Average October

    19.1 °C
  • Highest

    –

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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