Williams Island Weather Forecast
- 15
- 17
Sunny
- 15
- 18
Shower
- 16
- 16
Shower
- 15
- 18
Partly cloudy
- 16
- 20
Shower
- 16
- 17
Shower
- 15
- 17
Shower
Today 8 Jun Lower Eyre Peninsula
Sunny. Winds northerly 20 to 30 km/h. Daytime maximum temperatures around 18.
Central Coastal Waters
- Wind
- Northerly 15 to 25 knots, reaching up to 30 knots in the west in the evening.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2.5 metres in the west.
- 1st Swell
- Southwesterly 2.5 to 3 metres.
- Weather
- Sunny.
- Weather Situation
- A high pressure system over the Tasman Sea is responsible for northerly winds across South Australia, becoming fresh to strong ahead of a weakening cold front late Tuesday in the west and Wednesday morning for central and eastern waters. A second cold front expected to pass over SA waters on Saturday.
Williams Island Temperature Statistics View More
June Temperature
Neptune Island (36km)
Lowest 5 June, 2026
11.9 °CAverage June
14.9 °CHighest 1 June, 2026
19.5 °C
Climate (2021–Present)
Neptune Island (36km)
Average Low 2021–2026
14.3 °CAverage 2021–2026
16.2 °CAverage High 2021–2026
18.8 °C