Tumby Bay Weather Forecast
- 15
- 29
Clear
- 14
- 35
Sunny
- 17
- 35
Partly cloudy
- 15
- 22
Windy
- 14
- 22
Cloudy
- 14
- 24
Partly cloudy
- 14
- 27
Partly cloudy
Today 27 Dec Lower Eyre Peninsula
Clear. Winds east to southeasterly 20 to 30 km/h decreasing to 15 to 20 km/h in the late evening.
Spencer Gulf Coastal Waters
- Wind
- East to southeasterly 10 to 15 knots.
- Seas
- Below 1 metre.
- 1st Swell
- South to southwesterly below 1 metre.
- Weather
- Clear.
- Weather Situation
- A high pressure system centred near Tasmania maintains a broad ridge over most of South Australia, with a trough crossing the Bight. The high centre moves eastward into the Tasman Sea on Sunday and Monday while the trough builds over central SA and slowly moves eastward. The trough moves into the northeast of SA on Wednesday while a high passes south of the Bight.
Tumby Bay Temperature Statistics View More
December Temperature
Port Lincoln Airport (32km)
Lowest 7 December, 2025
8.1 °CAverage December
18.5 °CHighest 18 December, 2025
42.7 °C
Climate (2020–Present)
Port Lincoln Airport (32km)
Average Low 2020–2025
11.4 °CAverage 2020–2025
15.8 °CAverage High 2020–2025
21.3 °C