Tumby Bay Weather Forecast
- 9
- 17
Partly cloudy
- 5
- 18
Cloudy
- 6
- 25
Sunny
- 7
- 18
Shower
- 8
- 17
Cloudy
- 9
- 19
Partly cloudy
- 9
- 17
Partly cloudy
Today 16 Sep Lower Eyre Peninsula
Partly cloudy. Slight chance of a shower. Winds westerly 20 to 30 km/h decreasing to 15 to 20 km/h in the late evening.
Spencer Gulf Coastal Waters
- Wind
- Westerly 15 to 20 knots, reaching up to 25 knots south of Port Neill to Port Victoria.
- Seas
- Around 1 metre, increasing to 1.5 to 2 metres south of Cowell to Wallaroo.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
- Weather
- Mostly clear.
- Weather Situation
- A high pressure ridge will move in from the west and quickly track eastwards through Wednesday with a weak trough sweeping across the coasts on Thursday. A cold front will skim southern coasts on Friday with a southwesterly airstream establishing in its wake on Saturday as a high pressure ridge develops over the Far West Coast.
Tumby Bay Temperature Statistics View More
September Temperature
Port Lincoln Airport (32km)
Lowest 2 September, 2025
4 °CAverage September
13.2 °CHighest 6 September, 2025
27.5 °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