Port Bonython Weather Forecast

    • 17
    • 36

    Sunny

    • 20
    • 39

    Sunny

    • 24
    • 33

    Becoming windy. Partly cloudy

    • 18
    • 27

    Partly cloudy

    • 17
    • 26

    Possible shower

    • 15
    • 25

    Sunny

    • 16
    • 25

    Cloud clearing

Today 17 Dec Whyalla

Sunny. Light winds becoming east to southeasterly 15 to 25 km/h in the middle of the day then becoming light in the late evening.

Spencer Gulf Coastal Waters

Wind
East to southeasterly about 10 knots tending northeasterly 10 to 15 knots before dawn then turning east to southeasterly in the late morning and early afternoon.
Seas
Below 1 metre.
1st Swell
South to southwesterly below 1 metre.
Weather
Sunny.
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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

    21.5 °C

  • Highest 4 December, 2025

    40.7 °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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