Spencer Gulf Weather Forecast

    • 18
    • 22

    Cloudy

    • 19
    • 20

    Storm

    • 16
    • 17

    Shower

    • 14
    • 16

    Windy

    • 14
    • 16

    Cloudy

    • 15
    • 19

    Partly cloudy

    • 15
    • 17

    Windy

Today 30 Sep Flinders

Cloudy. Slight chance of a shower near the coast, most likely later this evening. Near zero chance of rain elsewhere. Winds west to northwesterly 25 to 35 km/h tending northwest to southwesterly 15 to 25 km/h in the late afternoon then tending northwest to northeasterly 15 to 20 km/h in the late evening.

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
Partly cloudy. 60% chance of showers. The chance of a thunderstorm.
Weather Situation
A series of troughs over SA will slowly move east ahead of a high pressure system that moves into the Bight on Friday. A cold front moving across the Southern Ocean will clip the far southeast late Thursday, with a low pressure system developing near the Victorian border on Friday. Another trough near the WA border is expected to develop on Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Spencer Gulf Temperature Statistics View More

September Temperature

Whyalla Airport (38km)

  • Lowest 11 September, 2026

    3.4 °C

  • Average September

    16.3 °C

  • Highest 20 September, 2026

    32.9 °C

Climate (2021–2026)

Whyalla Airport (38km)

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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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