Lewis Island Weather Forecast
- 10
- 17
Shower
- 9
- 18
Shower
- 10
- 17
Shower
- 9
- 17
Partly cloudy
- 9
- 18
Shower
- 10
- 17
Shower
- 9
- 17
Shower
Today 19 Aug Lower Eyre Peninsula
Partly cloudy. Medium chance of showers, most likely in the morning. Winds west to northwesterly 25 to 35 km/h decreasing to 15 to 20 km/h in the evening then becoming light in the late evening. Overnight temperatures falling to around 10 with daytime temperatures reaching around 17.
Spencer Gulf Coastal Waters
- Wind
- Northwesterly 10 to 15 knots, reaching up to 20 knots south of Cowell to Wallaroo during the morning and early afternoon. Winds turning westerly in the middle of the day.
- Seas
- 1 to 1.5 metres, decreasing to 1 metre during the afternoon.
- 1st Swell
- South to southwesterly around 1 metre, increasing to 1 to 1.5 metres around midday, then decreasing to around 1 metre during the afternoon.
- Weather
- Partly cloudy.
Lewis Island Temperature Statistics View More
August Temperature
Port Lincoln Airport (42km)
Lowest 1 August, 2026
2.6 °CAverage August
12 °CHighest 8 August, 2026
19.7 °C
Climate (2021–2026)
Port Lincoln Airport (42km)
Average Low 2021–2026
11.5 °CAverage 2021–2026
15.8 °CAverage High 2021–2026
21.3 °C