Lacy Island Weather Forecast
- 15
- 15
Clear
- 13
- 16
Sunny
- 16
- 20
Partly cloudy
- 19
- 21
Partly cloudy
- 17
- 19
Cloudy
- 19
- 21
Partly cloudy
- 20
- 22
Partly cloudy
Today 21 Sep West Coast
Clear. Winds southeasterly 15 to 20 km/h.
Upper West Coastal Waters
Fowlers Bay to Elliston- Wind
- Southeasterly 10 to 15 knots, reaching up to 20 knots south of Streaky Bay.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres inshore.
- 1st Swell
- Southwesterly 3 metres, increasing to 3 to 4 metres south of Streaky Bay.
- Weather
- Clear.
- Weather Situation
- A high pressure system centred to the southeast will continue to move eastwards over Victoria and over the Tasman Sea on Tuesday. This high will continue to extend a ridge westwards over SA ahead of a low pressure trough that is expected to move over the far west of SA during Wednesday. The trough will slip southeastwards over southern coasts during Thursday and Friday.
Lacy Island Temperature Statistics View More
September Temperature
Ceduna Airport (42km)
Lowest 17 September, 2026
1.8 °CAverage September
14.8 °CHighest 19 September, 2026
32.3 °C
Climate (2021–2026)
Ceduna Airport (42km)
Average Low 2021–2026
10.9 °CAverage 2021–2026
16.8 °CAverage High 2021–2026
23.7 °C