Port Bonython Weather Forecast

    • 16
    • 21

    Partly cloudy

    • 17
    • 23

    Cloud clearing

    • 16
    • 23

    Becoming windy. Partly cloudy

    • 15
    • 26

    Becoming windy. Sunny

    • 17
    • 30

    Sunny

    • 19
    • 35

    Sunny

    • 20
    • 38

    Sunny

Today 22 Dec Whyalla

Partly cloudy. Winds southeast to southwesterly 25 to 40 km/h.

Spencer Gulf Coastal Waters

Wind
South to southwesterly 15 to 20 knots, reaching up to 25 knots north of Cowell to Wallaroo in the evening.
Seas
Around 1 metre, increasing to 1 to 2 metres during the afternoon.
1st Swell
South to southwesterly below 1 metre.
Weather
Partly cloudy.
Weather Situation
A high pressure ridge extends across the entire Coastal Waters and persists until Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Bonython Temperature Statistics View More

December Temperature

Whyalla Airport (24km)

  • Lowest 2 December, 2025

    10.2 °C

  • Average December

    22.5 °C

  • Highest 18 December, 2025

    42.6 °C

Climate (2020–Present)

Whyalla Airport (24km)

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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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