Tumby Bay Weather Forecast
- 8
- 22
Partly cloudy
- 12
- 19
Shower
- 10
- 21
Partly cloudy
- 12
- 31
Sunny
- 16
- 23
Shower
- 10
- 18
Shower
- 9
- 21
Partly cloudy
Today 5 Oct Lower Eyre Peninsula
Partly cloudy. Light winds becoming northwesterly 15 to 20 km/h in the middle of the day then tending westerly 15 to 25 km/h in the early afternoon. Daytime maximum temperatures in the low 20s.
Spencer Gulf Coastal Waters
- Wind
- Variable about 10 knots.
- Seas
- Below 1 metre.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
- Weather
- Cloud clearing.
- Weather Situation
- A high pressure system south of SA extends a ridge over the state. A cold front is forecast to pass over the southeast early Tuesday, followed quickly by a high pressure system that is expected to pass over the south of the state later Tuesday and on Wednesday, maintaining a ridge over the state. Another cold front is expected to start moving across the Bight later in the week
Tumby Bay Temperature Statistics View More
October Temperature
Port Lincoln Airport (32 km)
Lowest 2 October, 2026
9.2 °CAverage October
14.7 °CHighest 1 October, 2026
22.6 °C
Climate (2021–2026)
Port Lincoln Airport (32 km)
Average Low 2021–2026
11.5 °CAverage 2021–2026
15.9 °CAverage High 2021–2026
21.3 °C