Tumby Island Weather Forecast

    • 5
    • 25

    Clear

    • 8
    • 18

    Shower

    • 8
    • 16

    Cloudy

    • 9
    • 18

    Cloudy

    • 9
    • 17

    Cloudy

    • 7
    • 17

    Cloudy

    • 6
    • 19

    Cloudy

Today 18 Sep Lower Eyre Peninsula

Clear. Winds westerly 15 to 25 km/h becoming light in the evening.

Spencer Gulf Coastal Waters

Wind
Northwest to northeasterly 10 to 15 knots tending west to southwesterly in the evening.
Seas
Around 1 metre.
1st Swell
South to southwesterly around 1 metre south of Cowell to Wallaroo.
Weather
Clear.
Weather Situation
A high pressure system lies over the Tasman Sea with a ridge extending into the east of the state. A weak trough over South Australian waters will continue moving through eastern waters tonight. A cold front will pass over the south during Friday afternoon with a southwesterly flow persisting through the weekend as a ridge of high pressure extends over northern parts of the state.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Tumby Island Temperature Statistics View More

September Temperature

Port Lincoln Airport (31km)

  • Lowest 2 September, 2025

    4 °C

  • Average September

    12.9 °C

  • Highest 6 September, 2025

    27.5 °C

Climate (2020–Present)

Port Lincoln Airport (31km)

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  • Average Low 2020–2025

    11.4 °C

  • Average 2020–2025

    15.8 °C

  • Average High 2020–2025

    21.3 °C
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