Port of Whyalla Weather Forecast

    • 9
    • 20

    Mostly clear

    • 9
    • 21

    Partly cloudy

    • 9
    • 20

    Becoming cloudy

    • 10
    • 21

    Partly cloudy

    • 9
    • 19

    Shower or two

    • 9
    • 18

    Shower or two

    • 8
    • 16

    Partly cloudy

Today 20 May Whyalla

Mostly clear. Winds southeasterly 15 to 20 km/h becoming light in the late afternoon.

Spencer Gulf Coastal Waters

Wind
Variable about 10 knots.
Seas
Below 1 metre.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Weather
Mostly clear.
Weather Situation
A high pressure system over SA will remain dominant as it slowly moves east and into the Tasman Sea on Friday. A cold front move across across South Australia over the weekend, followed by another high pressure system.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port of Whyalla Temperature Statistics View More

May Temperature

Whyalla Airport (8km)

  • Lowest 11 May, 2026

    5.5 °C

  • Average May

    15.6 °C

  • Highest 1 May, 2026

    30.7 °C

Climate (2021–Present)

Whyalla Airport (8km)

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  • Average Low 2021–2026

    12 °C

  • Average 2021–2026

    17.5 °C

  • Average High 2021–2026

    23.8 °C
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