Groper Bay Weather Forecast
- 13
- 21
Clear
- 12
- 27
Sunny
- 15
- 35
Sunny
- 18
- 37
Sunny
- 17
- 24
Partly cloudy
- 14
- 23
Partly cloudy
- 14
- 22
Shower
Today 15 Dec Lower Eyre Peninsula
Clear. Winds southeasterly 25 to 35 km/h.
Central Coastal Waters
- Wind
- Southeasterly 15 to 20 knots.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres by early evening.
- 1st Swell
- Southwesterly 2.5 to 3 metres.
- Weather
- Clear.
- Weather Situation
- A high pressure system to the south of the state will maintain a ridge across SA as it drifts into the Tasman by Wednesday. A trough of low pressure will briefly enter the far northeast of SA with another trough slowing moving across the south and west on Thursday. A south to southwesterly flow will establish across the coasts on Friday.
Groper Bay Temperature Statistics View More
December Temperature
Port Lincoln Airport (43km)
Lowest 7 December, 2025
8.1 °CAverage December
18.2 °CHighest 3 December, 2025
35.3 °C
Climate (2020–Present)
Port Lincoln Airport (43km)
Average Low 2020–2025
11.4 °CAverage 2020–2025
15.7 °CAverage High 2020–2025
21.3 °C