Tumby Island Weather Forecast
- 12
- 21
Cloudy
- 13
- 32
Partly cloudy
- 15
- 23
Partly cloudy
- 13
- 31
Partly cloudy
- 17
- 30
Partly cloudy
- 16
- 28
Shower
- 13
- 25
Partly cloudy
Today 20 Apr Lower Eyre Peninsula
Partly cloudy. Winds easterly 15 to 25 km/h. Daytime maximum temperatures 21 to 26.
Spencer Gulf Coastal Waters
- Wind
- Southeast to southwesterly 10 to 15 knots tending east to southeasterly in the evening.
- Seas
- Below 1 metre.
- 1st Swell
- South to southwesterly around 1 metre south of Cowell to Wallaroo.
- Weather
- Partly cloudy.
- Weather Situation
- A strong high pressure system east of Tasmania will maintain a ridge over SA this week. A cold front is expected to weaken and slide across western and southern coasts during Tuesday and Wednesday. A second cold front may pass over the south again on Saturday with a high pressure system to follow over waters south of the Bight on Sunday.
Tumby Island Temperature Statistics View More
April Temperature
Port Lincoln Airport (31km)
Lowest 14 April, 2026
8.8 °CAverage April
16.8 °CHighest 16 April, 2026
26.7 °C
Climate (2021–Present)
Port Lincoln Airport (31km)
Average Low 2021–2026
11.4 °CAverage 2021–2026
15.8 °CAverage High 2021–2026
21.3 °C