Spencer Gulf Weather Forecast

    • 18
    • 19

    Partly cloudy

    • 17
    • 20

    Windy

    • 17
    • 22

    Partly cloudy

    • 18
    • 24

    Partly cloudy

    • 21
    • 27

    Partly cloudy

    • 19
    • 22

    Shower

    • 19
    • 22

    Shower

Today 25 Sep Flinders

Partly cloudy. Winds northwest to northeasterly 15 to 20 km/h becoming northwesterly 20 to 30 km/h in the morning then becoming light in the late evening. Daytime maximum temperatures 29 to 34.

Spencer Gulf Coastal Waters

Wind
Variable below 10 knots becoming south to southwesterly 10 to 15 knots in the morning then tending south to southeasterly in the evening.
Seas
Around 1 metre.
1st Swell
South to southwesterly below 1 metre, increasing to around 1 metre south of Cowell to Wallaroo.
Weather
Partly cloudy. The chance of a thunderstorm.
Weather Situation
A low pressure trough extends from WA over western SA. This trough will be very slow-moving for the rest of this week and over the weekend. A weakening cold front will slip across southern coasts during today. Another low pressure trough will develop over WA on Sunday and Monday then move over SA early to mid 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 11 September, 2026

    3.4 °C

  • Average September

    15.3 °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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