Spilsby Island Weather Forecast
- 13
- 14
Windy
- 12
- 15
Windy
- 14
- 15
Partly cloudy
- 15
- 17
Partly cloudy
- 17
- 18
Shower
- 15
- 16
Partly cloudy
- 14
- 15
Shower
Today 9 Sep Lower Eyre Peninsula
Cloudy. Winds southeasterly 25 to 40 km/h tending easterly 25 to 35 km/h in the late evening.
Spencer Gulf Coastal Waters
- Wind
- Southeasterly 15 to 20 knots, reaching up to 25 knots south of Cowell to Wallaroo during the afternoon and evening.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2 metres south of Cowell to Wallaroo.
- 1st Swell
- South to southwesterly 1 to 1.5 metres, increasing to 2 to 3 metres south of Cowell to Wallaroo.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system centred south of the Bight extends a ridge across the south of SA. The main high centre will gradually move eastwards to be centred to the east of SA on Friday. A trough over the interior of WA will remain stationary for most of the week and may extend into the far west of SA at times. Another low pressure trough will approach from the west on Saturday and move across SA on Sunday.
Spilsby Island Temperature Statistics View More
September Temperature
Port Lincoln Airport (43km)
Lowest 8 September, 2026
7.5 °CAverage September
13.8 °CHighest 4 September, 2026
25.1 °C
Climate (2021–2026)
Port Lincoln Airport (43km)
Average Low 2021–2026
11.5 °CAverage 2021–2026
15.8 °CAverage High 2021–2026
21.3 °C