Whyalla Marina Weather Forecast

    • 9
    • 25

    Showers

    • 11
    • 20

    Partly cloudy

    • 7
    • 17

    Partly cloudy

    • 9
    • 18

    Partly cloudy

    • 8
    • 18

    Partly cloudy

    • 10
    • 19

    Partly cloudy

    • 9
    • 21

    Mostly sunny

Today 4 Sep Whyalla

Cloudy. Very high chance of showers, becoming less likely this afternoon. The chance of a thunderstorm. Light winds becoming northwest to northeasterly 25 to 40 km/h in the morning then becoming northwesterly 20 to 25 km/h in the evening.

Spencer Gulf Coastal Waters

Wind
North to northeasterly 15 to 20 knots turning northwesterly 15 to 25 knots in the late afternoon.
Seas
Around 1 metre, increasing to 1 to 1.5 metres around midday.
1st Swell
South to southwesterly 1 to 2 metres, increasing to 2 to 3 metres south of Port Neill to Port Victoria.
Weather
Partly cloudy. 90% chance of showers. The chance of a thunderstorm.
Weather Situation
A high pressure ridge over SA will move to the east during this morning, as a trough moves over the state during the day, followed by a strong cold front early Saturday. A high pressure system will then move across the state, behind the front, and merge with another high located to the southwest of WA on Sunday to extend a ridge across much of SA into next week. A low pressure system is also expected to move in vicinity of the WA border late Sunday and may extend a trough into far west SA into next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Whyalla Marina Temperature Statistics View More

September Temperature

Whyalla Airport (6km)

  • Lowest 3 September, 2026

    6.7 °C
  • Average September

    15 °C
  • Highest 1 September, 2026

    27.7 °C

Climate (2021–2026)

Whyalla Airport (6km)

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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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