Spencer Gulf Weather Forecast

    • 18
    • 24

    Partly cloudy

    • 22
    • 29

    Windy

    • 19
    • 22

    Cloudy

    • 19
    • 19

    Storm

    • 15
    • 16

    Windy

    • 14
    • 17

    Partly cloudy

    • 15
    • 18

    Partly cloudy

Today 28 Sep Flinders

Mostly sunny. Winds east to northeasterly 15 to 25 km/h tending north to northeasterly 15 to 20 km/h in the middle of the day then tending east to northeasterly 15 to 25 km/h in the late afternoon. Daytime maximum temperatures 27 to 34.

Spencer Gulf Coastal Waters

Wind
Easterly 15 to 20 knots turning northeasterly during the afternoon and evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Weather
Partly cloudy.
Weather Situation
A trough over central Australia will weaken and contract into WA as a ridge of high pressure extends across southeastern SA. 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 and reaching the far northeast on Thursday.
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

    15.8 °C

  • Highest 20 September, 2026

    32.9 °C

Climate (2021–2026)

Whyalla Airport (38km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    12 °C

  • Average 2021–2026

    17.6 °C

  • Average High 2021–2026

    23.8 °C
Get WillyWeather+ to remove ads