Lewis Island Weather Forecast

    • 10
    • 21

    Partly cloudy

    • 11
    • 21

    Sunny

    • 11
    • 19

    Sunny

    • 11
    • 20

    Sunny

    • 13
    • 21

    Shower

    • 12
    • 17

    Shower

    • 10
    • 18

    Shower

Today 28 Aug Lower Eyre Peninsula

Mostly sunny. Winds north to northeasterly 15 to 20 km/h becoming light in the middle of the day. Daytime maximum temperatures in the low 20s.

Spencer Gulf Coastal Waters

Wind
Northerly 10 to 15 knots becoming variable about 10 knots in the middle of the day.
Seas
Below 1 metre.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Weather
Sunny.
Weather Situation
A high pressure system over NSW will weaken and merge with another high pressure system to the south of SA today as a low pressure trough hovers over WA close to the SA border. The high to the south will move slowly east over the weekend to be centred over Victoria by Monday, strengthening a ridge over South Australia into next week.
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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

    12.3 °C

  • Highest 18 August, 2026

    20.3 °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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