Spencer Gulf Weather Forecast

    • 18
    • 19

    Partly cloudy

    • 18
    • 20

    Partly cloudy

    • 19
    • 25

    Partly cloudy

    • 22
    • 23

    Shower

    • 20
    • 20

    Shower

    • 15
    • 16

    Shower

    • 14
    • 17

    Shower

Today 20 Oct Flinders

Partly cloudy. Medium chance of showers. The chance of a thunderstorm, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding on and east of the ranges. Winds northwest to northeasterly 15 to 20 km/h tending southeast to southwesterly 15 to 25 km/h in the late evening.

Spencer Gulf Coastal Waters

Wind
Southerly 10 to 15 knots, reaching up to 20 knots north of Cowell to Wallaroo during the afternoon and evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres north of Cowell to Wallaroo by early evening.
1st Swell
South to southwesterly below 1 metre, increasing to around 1 metre south of Cowell to Wallaroo.
Weather
Mostly clear.
Weather Situation
A trough of low pressure lingers about the east, before weakening from late Wednesday. A slow moving high pressure system in the Tasman Sea will re-establish a ridge across southern parts from Wednesday. A trough is then forecast to briefly move into the west on Thursday, before another trough and cold front move more broadly across SA on Friday and Saturday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Spencer Gulf Temperature Statistics View More

October Temperature

Whyalla Airport (38 km)

  • Lowest 15 October, 2026

    6.2 °C

  • Average October

    17.9 °C

  • Highest 8 October, 2026

    32.4 °C

Climate (2021–2026)

Whyalla Airport (38 km)

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  • Average Low 2021–2026

    12.1 °C

  • Average 2021–2026

    17.6 °C

  • Average High 2021–2026

    23.8 °C
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