Lewis Island Weather Forecast

    • 10
    • 19

    Sunny

    • 12
    • 21

    Shower

    • 11
    • 16

    Shower

    • 12
    • 18

    Shower

    • 11
    • 20

    Shower

    • 12
    • 17

    Shower

    • 9
    • 16

    Shower

Today 31 Aug Lower Eyre Peninsula

Patchy morning fog. Sunny afternoon. Light winds becoming northerly 15 to 20 km/h in the late evening. Daytime maximum temperatures in the low 20s.

Spencer Gulf Coastal Waters

Wind
East to northeasterly 10 to 15 knots turning northerly during the day.
Seas
Below 1 metre.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.
Weather
Sunny.
Weather Situation
A high pressure system southeast of SA continues extending a ridge across the state, as it moves over Victoria and into the Tasman Sea by late Monday. A cold front is then forecast to move across the state on Tuesday, as another ridge and high push in behind the front on Wednesday. Another cold front may slip across the southeast parts of SA early Thursday, with the high moving over eastern SA.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Lewis Island Temperature Statistics View More

August Temperature

Port Lincoln Airport (42km)

  • Lowest 1 August, 2026

    2.6 °C

  • Average August

    12.4 °C

  • Highest 27 August, 2026

    21.3 °C

Climate (2021–2026)

Port Lincoln Airport (42km)

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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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