Spencer Gulf Weather Forecast

    • 15
    • 21

    Shower

    • 16
    • 17

    Shower

    • 13
    • 16

    Cloudy

    • 14
    • 16

    Partly cloudy

    • 13
    • 16

    Partly cloudy

    • 14
    • 16

    Partly cloudy

    • 13
    • 17

    Partly cloudy

Today 4 Sep Flinders

Cloudy. Very high chance of showers south of Hawker, high chance elsewhere. The chance of a thunderstorm west of the ranges. Winds east to northeasterly 15 to 20 km/h turning north to northwesterly 25 to 35 km/h during the day. Daytime maximum temperatures 20 to 27.

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.
Graph Plots Open in Graphs
  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Spencer Gulf Temperature Statistics View More

September Temperature

Whyalla Airport (38km)

  • Lowest 3 September, 2026

    6.7 °C
  • Average September

    15 °C
  • Highest 1 September, 2026

    27.7 °C

Climate (2021–2026)

Whyalla Airport (38km)

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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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