Spencer Gulf Weather Forecast

    • 17
    • 23

    Clear

    • 21
    • 24

    Windy

    • 15
    • 16

    Windy

    • 14
    • 18

    Sunny

    • 15
    • 20

    Sunny

    • 17
    • 25

    Partly cloudy

    • 20
    • 25

    Partly cloudy

Today 19 Sep Flinders

Clear. Winds northwesterly 15 to 25 km/h turning north to northeasterly 15 to 20 km/h in the late afternoon.

Spencer Gulf Coastal Waters

Wind
Northeasterly 10 to 15 knots tending northerly in the evening. Winds reaching up to 20 knots south of Cowell to Wallaroo in the late evening.
Seas
Below 1 metre.
1st Swell
South to southwesterly below 1 metre.
Weather
Clear.
Weather Situation
A high pressure system centred over NSW will extend a ridge westwards over SA during Saturday. A cold front will approach from the west late Saturday then move across SA on Sunday. Another high pressure system will move eastwards across waters to the south during Monday then over Victoria and the Tasman Sea on Tuesday. This high will extend a ridge westwards over SA ahead of a low pressure trough that is expected to move over the far west of SA during Wednesday.
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

    14.4 °C

  • Highest 13 September, 2026

    28.9 °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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