Duffield Island Weather Forecast
- 20
- 23
Clear
- 18
- 18
Windy
- 16
- 18
Partly cloudy
- 17
- 19
Shower
- 16
- 18
Cloudy
- 17
- 17
Cloudy
- 16
- 18
Cloudy
Today 18 Dec Lower Eyre Peninsula
Clear. Winds west to southwesterly 25 to 35 km/h turning south to southeasterly 15 to 20 km/h in the evening.
Spencer Gulf Coastal Waters
- Wind
- Northeast to southeasterly 10 to 15 knots tending southeast to southwesterly in the evening. Winds reaching up to 20 knots north of Cowell to Wallaroo in the evening.
- Seas
- Around 1 metre.
- 1st Swell
- South to southwesterly below 1 metre.
- Weather
- Clear.
- Weather Situation
- A trough of low pressure lingers about the northeast of SA this evening, as another trough of low pressure develops over the west. This broad area of low pressure is expected to slowly extend a trough across the state from the west during Friday and Saturday, before contracting to the far northeast on Sunday evening. Behind this, a ridge of high pressure moves over the west and south during Sunday, persisting throughout SA by late Monday.
Duffield Island Temperature Statistics View More
December Temperature
Port Lincoln Airport (40km)
Lowest 7 December, 2025
8.1 °CAverage December
18.2 °CHighest 3 December, 2025
35.3 °C
Climate (2020–Present)
Port Lincoln Airport (40km)
Average Low 2020–2025
11.4 °CAverage 2020–2025
15.7 °CAverage High 2020–2025
21.3 °C