Spencer Gulf Weather Forecast
- 14
- 20
Partly cloudy
- 18
- 22
Shower
- 15
- 17
Cloudy
- 15
- 16
Windy
- 12
- 16
Sunny
- 12
- 17
Sunny
- 14
- 21
Sunny
Today 12 Sep Flinders
Mostly clear. Winds north to northeasterly 15 to 20 km/h becoming light in the evening then becoming north to northeasterly 15 to 20 km/h in the late evening.
Spencer Gulf Coastal Waters
- Wind
- Northeasterly 10 to 15 knots turning northerly in the late evening. Winds reaching up to 20 knots near the Yorke Peninsula coast in the late 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
- Mostly clear.
- Weather Situation
- A trough is approaching from the west and will move across SA on Sunday, as an upper level disturbance moves over the far west later on Sunday. A high pressure ridge will also extend into the state from a high located southwest of WA from late Sunday. A cold front will then slip across southern coasts late Monday and early Tuesday, before the high moves across waters to the south to be centred over Victoria by Thursday.
Spencer Gulf Temperature Statistics View More
September Temperature
Whyalla Airport (38km)
Lowest 11 September, 2026
3.4 °CAverage September
14.1 °CHighest 1 September, 2026
27.7 °C
Climate (2021–2026)
Whyalla Airport (38km)
Average Low 2021–2026
12 °CAverage 2021–2026
17.5 °CAverage High 2021–2026
23.8 °C