Tumby Island Weather Forecast

    • 8
    • 18

    Shower

    • 9
    • 16

    Cloudy

    • 8
    • 18

    Partly cloudy

    • 8
    • 19

    Cloudy

    • 10
    • 18

    Shower

    • 8
    • 16

    Shower

    • 6
    • 16

    Partly cloudy

Today 20 Aug Lower Eyre Peninsula

Partly cloudy. Medium chance of showers, most likely in the late morning and afternoon. Winds northwesterly 15 to 25 km/h turning west to southwesterly 20 to 30 km/h in the late morning and early afternoon. Overnight temperatures falling to between 6 and 9 with daytime temperatures reaching around 18.

Spencer Gulf Coastal Waters

Wind
Northwesterly 10 to 15 knots turning southwesterly in the afternoon.
Seas
Below 1 metre, increasing to around 1 metre south of Cowell to Wallaroo.
1st Swell
South to southwesterly around 1 metre.
Weather
Partly cloudy. 50% chance of showers south of Cowell to Wallaroo, near zero chance elsewhere.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Tumby Island Temperature Statistics View More

August Temperature

Port Lincoln Airport (31km)

  • Lowest 1 August, 2026

    2.6 °C

  • Average August

    12.2 °C

  • Highest 18 August, 2026

    20.3 °C

Climate (2021–2026)

Port Lincoln Airport (31km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    11.5 °C

  • Average 2021–2026

    15.8 °C

  • Average High 2021–2026

    21.3 °C
Get WillyWeather+ to remove ads