Port of Whyalla Weather Forecast

    • 20
    • 39

    Becoming windy. Partly cloudy

    • 18
    • 27

    Windy. Mostly sunny

    • 15
    • 24

    Becoming windy. Partly cloudy

    • 14
    • 24

    Becoming windy. Partly cloudy

    • 14
    • 28

    Sunny

    • 17
    • 34

    Sunny

    • 19
    • 36

    Sunny

Today 12 Dec Whyalla

Partly cloudy. Winds south to southwesterly 15 to 20 km/h tending east to southeasterly 15 to 25 km/h in the morning then tending southerly 30 to 45 km/h in the early afternoon.

Extreme Fire Danger Rating

Take action now to protect life and property

Spencer Gulf Coastal Waters

Wind
East to southeasterly 10 to 15 knots becoming variable about 10 knots in the early morning then becoming southerly 15 to 25 knots in the middle of the day. Winds reaching up to 30 knots north of Cowell to Wallaroo in the evening.
Seas
Below 1 metre, increasing to 1 to 2 metres during the afternoon.
1st Swell
South to southwesterly below 1 metre, increasing to around 1 metre south of Cowell to Wallaroo.
Weather
Partly cloudy.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port of Whyalla Temperature Statistics View More

December Temperature

Whyalla Airport (8km)

  • Lowest 2 December, 2025

    10.2 °C

  • Average December

    21.6 °C

  • Highest 4 December, 2025

    40.7 °C

Climate (2020–Present)

Whyalla Airport (8km)

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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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