Whyalla Marina Weather Forecast

    • 7
    • 17

    Partly cloudy

    • 7
    • 17

    Partly cloudy

    • 6
    • 20

    Partly cloudy

    • 8
    • 18

    Rain

    • 8
    • 16

    Shower or two

    • 6
    • 18

    Partly cloudy

    • 8
    • 21

    Shower or two

Today 21 Aug Whyalla

Partly cloudy. Light winds becoming southeast to southwesterly 15 to 20 km/h in the morning then becoming light in the late afternoon.

Spencer Gulf Coastal Waters

Wind
West to southwesterly about 10 knots increasing to 10 to 15 knots in the middle of the day then decreasing to about 10 knots in the late afternoon.
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
Cloudy.
Weather Situation
A high pressure system moves into the west on Friday and continues moving slowly eastwards to be situated in the Tasman Sea on Sunday. A low pressure system and associated trough move into the far west on Sunday and then moves across the state on Monday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Whyalla Marina Temperature Statistics View More

August Temperature

Whyalla Airport (6km)

  • Lowest 1 August, 2026

    -0.4 °C

  • Average August

    12.4 °C

  • Highest 7 August, 2026

    21.4 °C

Climate (2021–2026)

Whyalla Airport (6km)

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  • Average Low 2021–2026

    12 °C

  • Average 2021–2026

    17.6 °C

  • Average High 2021–2026

    23.8 °C
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