Groper Bay Weather Forecast
- 14
- 28
Partly cloudy
- 16
- 29
Partly cloudy
- 13
- 21
Partly cloudy
- 13
- 21
Cloudy
- 12
- 20
Cloudy
- 12
- 25
Partly cloudy
- 13
- 32
Sunny
Today 11 Dec Lower Eyre Peninsula
Partly cloudy. Slight chance of a shower in the late morning and afternoon. The chance of a thunderstorm in the late morning and afternoon. Winds east to southeasterly 20 to 30 km/h. Daytime maximum temperatures 28 to 33.
Central Coastal Waters
- Wind
- Southeasterly 15 to 20 knots.
- Seas
- 1 to 1.5 metres, decreasing to 1 metre during the afternoon.
- 1st Swell
- Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres later in the evening.
- Weather
- Mostly sunny. The chance of a thunderstorm in the late morning and afternoon.
- Weather Situation
- A ridge of high pressure persists over southern SA, before the high centre moves eastwards over the Tasman Sea late today. A trough of low pressure is expected to move eastwards across the SA waters on Friday. Another ridge of high pressure will move over the south during the weekend.
Groper Bay Temperature Statistics View More
December Temperature
Port Lincoln Airport (43km)
Lowest 7 December, 2025
8.1 °CAverage December
18.1 °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