Whyalla Weather Forecast

    • 15
    • 24

    Cloud clearing

    • 15
    • 25

    Becoming windy. Partly cloudy

    • 14
    • 26

    Becoming windy. Mostly sunny

    • 16
    • 30

    Sunny

    • 18
    • 34

    Sunny

    • 19
    • 36

    Sunny

    • 21
    • 39

    Mostly sunny

Today 23 Dec Whyalla

Slight chance of a shower this morning. Sunny afternoon. Winds southerly 25 to 40 km/h.

Spencer Gulf Coastal Waters

Wind
Southerly 15 to 20 knots, reaching up to 25 knots north of Cowell to Wallaroo during the afternoon and evening.
Seas
Around 1 metre, increasing to 1 to 2 metres during the afternoon.
1st Swell
South to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the afternoon.
Weather
Partly cloudy.
Weather Situation
A ridge of high pressure persists across South Australia this week as the high centre moves to the south of the Bight on Thursday, continuing eastwards on Friday.
Graph Plots Open in Graphs

  • 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

    22.3 °C

  • Highest 18 December, 2025

    42.6 °C

Climate (2020–Present)

Whyalla Airport (6km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    11.8 °C

  • Average 2020–2025

    17.4 °C

  • Average High 2020–2025

    23.7 °C
Get WillyWeather+ to remove ads