Williams Island Weather Forecast
- 18
- 20
Partly cloudy
- 16
- 17
Shower
- 16
- 17
Windy
- 15
- 16
Partly cloudy
- 15
- 18
Sunny
- 17
- 18
Partly cloudy
- 16
- 19
Partly cloudy
Today 4 Dec Lower Eyre Peninsula
Partly cloudy. Winds west to northwesterly 25 to 35 km/h shifting southerly in the early afternoon. Daytime maximum temperatures 27 to 37.
Central Coastal Waters
- Wind
- Southerly 15 to 20 knots tending southeasterly 10 to 15 knots in the late evening.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- Southwesterly 2 to 2.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A ridge of high pressure extends over SA from the east, as a low pressure trough moves into the west during the morning. The trough is expected to move eastwards during Thursday. A ridge of high pressure is then forecast to build over the Bight on Friday and a weak cold front will move across the southern coastal districts on Saturday. The high will slowly move eastwards on Sunday.
Williams Island Temperature Statistics View More
December Temperature
Port Lincoln Airport (48km)
Lowest 2 December, 2025
8.5 °CAverage December
16.6 °CHighest 2 December, 2025
25.6 °C
Climate (2020–Present)
Port Lincoln Airport (48km)
Average Low 2020–2025
11.4 °CAverage 2020–2025
15.7 °CAverage High 2020–2025
21.3 °C