Spencer Gulf Weather Forecast

    • 16
    • 24

    Partly cloudy

    • 18
    • 20

    Partly cloudy

    • 17
    • 19

    Windy

    • 17
    • 21

    Partly cloudy

    • 17
    • 23

    Sunny

    • 20
    • 25

    Partly cloudy

    • 18
    • 21

    Shower

Today 24 Sep Flinders

Sunny. Light winds becoming north to northwesterly 15 to 25 km/h in the morning then turning east to northeasterly 15 to 20 km/h in the evening. Daytime maximum temperatures around 30.

Spencer Gulf Coastal Waters

Wind
North to northeasterly 10 to 15 knots shifting south to southwesterly in the evening.
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. 50% chance of showers south of Port Neill to Port Victoria, near zero chance elsewhere.
Weather Situation
A high pressure system centred over the Tasman Sea extends a ridge westwards over central and eastern SA and a low pressure trough extends from WA over western SA. This trough will be very slow-moving for the rest of the week and over the weekend and the ridge will move away to the east. A weakening cold front will slip across southern coasts late Thursday and early Friday.
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

    15.1 °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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