Tumby Bay Weather Forecast

    • 19
    • 34

    Partly cloudy

    • 13
    • 28

    Partly cloudy

    • 13
    • 23

    Cloudy

    • 9
    • 22

    Partly cloudy

    • 8
    • 28

    Sunny

    • 13
    • 25

    Partly cloudy

    • 14
    • 26

    Partly cloudy

Today 4 Dec Lower Eyre Peninsula

Partly cloudy. Winds north to northwesterly 20 to 30 km/h shifting southerly 25 to 35 km/h in the late morning and early afternoon then tending southeasterly 15 to 20 km/h in the late evening. Daytime maximum temperatures 27 to 37.

Spencer Gulf Coastal Waters

Wind
North to northwesterly 15 to 20 knots shifting southerly during the afternoon and evening. Winds reaching up to 30 knots in the north in the evening.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres by early evening.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Weather
Partly cloudy.
Weather Situation
A ridge of high pressure extends over SA from the east, as a low pressure trough moves into the west during the morning. The trough is expected to move eastwards during Thursday. A ridge of high pressure is then forecast to build over the Bight on Friday and a weak cold front will move across the southern coastal districts on Saturday. The high will slowly move eastwards on Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Tumby Bay Temperature Statistics View More

December Temperature

Port Lincoln Airport (32km)

  • Lowest 2 December, 2025

    8.5 °C

  • Average December

    16.6 °C

  • Highest 2 December, 2025

    25.6 °C

Climate (2020–Present)

Port Lincoln Airport (32km)

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  • Average Low 2020–2025

    11.4 °C

  • Average 2020–2025

    15.7 °C

  • Average High 2020–2025

    21.3 °C
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