Lewis Island Weather Forecast

    • 10
    • 15

    Windy

    • 10
    • 16

    Partly cloudy

    • 11
    • 18

    Partly cloudy

    • 11
    • 21

    Partly cloudy

    • 14
    • 23

    Shower

    • 13
    • 20

    Shower

    • 11
    • 16

    Shower

Today 9 Sep Lower Eyre Peninsula

Cloudy. Slight chance of a shower near the east coast early this morning. Near zero chance of rain elsewhere. Winds southeasterly 25 to 40 km/h tending easterly 25 to 35 km/h in the late evening. Daytime maximum temperatures around 15.

Spencer Gulf Coastal Waters

Wind
Southeasterly 15 to 25 knots, reaching up to 30 knots south of Cowell to Wallaroo during the morning.
Seas
1.5 to 2.5 metres.
1st Swell
South to southwesterly 1 to 2 metres, increasing to 2 to 3 metres around midday.
Weather
Cloudy.
Weather Situation
A high pressure system centred south of WA extends a ridge across the south of SA. The main high centre will move eastwards during the week to be centred to the east of SA on Friday. A trough over the interior of WA will remain stationary for most of the week and may extend into the far west of SA at times. Another low pressure trough will approach from the west on Saturday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Lewis Island Temperature Statistics View More

September Temperature

Port Lincoln Airport (42km)

  • Lowest 8 September, 2026

    7.5 °C

  • Average September

    13.8 °C

  • Highest 4 September, 2026

    25.1 °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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