Whyalla Weather Forecast

    • 17
    • 35

    Sunny

    • 20
    • 37

    Sunny

    • 19
    • 27

    Becoming windy. Mostly sunny

    • 16
    • 27

    Becoming windy. Mostly sunny

    • 16
    • 29

    Sunny

    • 17
    • 31

    Mostly sunny

    • 18
    • 30

    Mostly sunny

Today 28 Dec Whyalla

Sunny. Light winds becoming east to northeasterly 15 to 20 km/h in the morning then turning south to southeasterly 20 to 30 km/h in the middle of the day.

Spencer Gulf Coastal Waters

Wind
Easterly 10 to 15 knots tending northeasterly in the early morning then turning east to southeasterly in the late morning and early afternoon. Winds reaching up to 20 knots north of Cowell to Wallaroo in the evening.
Seas
Around 1 metre.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Port Neill to Port Victoria later in the evening.
Weather
Sunny.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Whyalla Temperature Statistics View More

December Temperature

Whyalla Airport (6km)

  • Lowest 2 December, 2025

    10.2 °C

  • Average December

    21.9 °C

  • Highest 18 December, 2025

    42.6 °C

Climate (2020–Present)

Whyalla Airport (6km)

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  • Average Low 2020–2025

    11.8 °C

  • Average 2020–2025

    17.4 °C

  • Average High 2020–2025

    23.7 °C
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