Spencer Gulf Weather Forecast

    • 17
    • 19

    Windy

    • 17
    • 22

    Partly cloudy

    • 18
    • 25

    Partly cloudy

    • 22
    • 28

    Windy

    • 19
    • 21

    Cloudy

    • 20
    • 22

    Shower

    • 15
    • 17

    Partly cloudy

Today 26 Sep Flinders

Partly cloudy. The chance of a thunderstorm on and east of the ranges in the afternoon and evening. Winds northwest to northeasterly 15 to 25 km/h tending northwest to southwesterly in the middle of the day then tending south to southeasterly 25 to 35 km/h in the late afternoon. Daytime maximum temperatures 27 to 34.

Spencer Gulf Coastal Waters

Wind
Southeasterly 15 to 25 knots, reaching up to 30 knots south of Port Neill to Port Victoria in the evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres during the afternoon.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Weather
Cloudy. 70% chance of showers south of Cowell to Wallaroo, near zero chance elsewhere.
Weather Situation
A trough over central Australia will weaken and contract into WA as a ridge of high pressure extends across southern SA on Sunday. The high pressure system is expected to drift into the Tasman Sea by Tuesday as the trough in WA begins to re-extend over western SA on Tuesday, pushing into the state on 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

    15.6 °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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