Sibsey Island Weather Forecast
- 19
- 20
Windy
- 17
- 17
Windy
- 17
- 17
Cloudy
- 15
- 17
Cloudy
- 16
- 20
Partly cloudy
- 19
- 22
Sunny
- 20
- 22
Partly cloudy
Today 12 Dec Lower Eyre Peninsula
Mostly clear. Winds southerly 25 to 40 km/h.
Spencer Gulf Coastal Waters
- Wind
- Southerly 15 to 25 knots, reaching up to 30 knots north of Cowell to Wallaroo in the evening.
- Seas
- Around 1 metre, increasing to 1.5 to 2 metres by early evening.
- 1st Swell
- South to southwesterly below 1 metre, increasing to around 1 metre south of Cowell to Wallaroo.
- Weather
- Mostly clear. The chance of a thunderstorm.
- Weather Situation
- A trough will move eastwards to clear South East coastal waters during Friday evening. A slow moving broad high pressure system in the Indian Ocean will then build a ridge across coastal waters on Saturday and establish itself south of the Bight on Sunday and Monday. The high is forecast to move east into the Tasman Sea on Tuesday while maintaining a ridge over coastal waters.
Sibsey Island Temperature Statistics View More
December Temperature
Port Lincoln Airport (28km)
Lowest 7 December, 2025
8.1 °CAverage December
18.1 °CHighest 3 December, 2025
35.3 °C
Climate (2020–Present)
Port Lincoln Airport (28km)
Average Low 2020–2025
11.4 °CAverage 2020–2025
15.7 °CAverage High 2020–2025
21.3 °C