Port Bonython Weather Forecast

    • 19
    • 27

    Clear

    • 16
    • 25

    Becoming windy. Mostly sunny

    • 16
    • 29

    Becoming windy. Sunny

    • 18
    • 37

    Sunny

    • 21
    • 42

    Sunny

    • 23
    • 42

    Mostly sunny

    • 23
    • 38

    Mostly sunny

Today 3 Jan Whyalla

Clear. Winds southerly 30 to 40 km/h.

Spencer Gulf Coastal Waters

Wind
Southerly 15 to 20 knots, reaching up to 25 knots north of Cowell to Wallaroo.
Seas
1.5 to 2 metres.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Weather
Mostly clear.
Weather Situation
A high pressure system centred south of SA extends a ridge over the west of the state and a broad trough lingers over the far northeast. These features will remain relatively stationary over the weekend then the high will move eastwards early next week. A broad trough will move across from the west mid next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Bonython Temperature Statistics View More

January Temperature

Whyalla Airport (24km)

  • Lowest 2 January, 2026

    15.9 °C
  • Average January

    20.8 °C
  • Highest 1 January, 2026

    28.3 °C

Climate (2021–Present)

Whyalla Airport (24km)

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  • Average Low 2021–2026

    11.8 °C
  • Average 2021–2026

    17.4 °C
  • Average High 2021–2026

    23.7 °C
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