Tumby Island Weather Forecast

    • 11
    • 18

    Shower

    • 11
    • 22

    Shower

    • 13
    • 16

    Windy

    • 8
    • 17

    Cloudy

    • 11
    • 16

    Cloudy

    • 11
    • 18

    Shower

    • 12
    • 16

    Partly cloudy

Today 3 Sep Lower Eyre Peninsula

Partly cloudy. High chance of showers, most likely in the morning and afternoon. Winds westerly 15 to 25 km/h becoming light in the late afternoon. Overnight temperatures falling to between 9 and 12 with daytime temperatures reaching around 18.

Spencer Gulf Coastal Waters

Wind
West to northwesterly 10 to 15 knots, reaching up to 20 knots south of Cowell to Wallaroo during the morning. Winds tending west to southwesterly in the middle of the day then becoming variable about 10 knots in the late afternoon.
Seas
1 to 1.5 metres, decreasing below 1 metre during the afternoon.
1st Swell
South to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres south of Port Neill to Port Victoria.
Weather
Partly cloudy. 50% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Tumby Island Temperature Statistics View More

September Temperature

Port Lincoln Airport (31km)

  • Lowest 2 September, 2026

    8.2 °C

  • Average September

    13.7 °C

  • Highest 1 September, 2026

    20.9 °C

Climate (2021–2026)

Port Lincoln Airport (31km)

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  • Average Low 2021–2026

    11.5 °C

  • Average 2021–2026

    15.8 °C

  • Average High 2021–2026

    21.3 °C
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