Williams Island Weather Forecast

    • 13
    • 15

    Partly cloudy

    • 14
    • 17

    Partly cloudy

    • 17
    • 20

    Shower

    • 16
    • 17

    Shower

    • 16
    • 18

    Partly cloudy

    • 17
    • 19

    Partly cloudy

    • 18
    • 19

    Shower

Today 22 Sep Lower Eyre Peninsula

Sunny. Winds easterly 15 to 20 km/h becoming light in the early morning then becoming easterly 15 to 20 km/h in the morning. Daytime maximum temperatures between 18 and 21.

Central Coastal Waters

Wind
Easterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 3 to 4 metres, decreasing to 3 metres later in the evening.
Weather
Partly cloudy.
Weather Situation
A high pressure system centred to the southeast will continue to move eastwards over Victoria and over the Tasman Sea on Tuesday. This high will continue to extend a ridge westwards over SA ahead of a low pressure trough that is expected to move over the far west of SA during Wednesday. The trough will slip southeastwards over southern coasts during Thursday and Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Williams Island Temperature Statistics View More

September Temperature

Port Lincoln Airport (48km)

  • Lowest 18 September, 2026

    3.3 °C

  • Average September

    14 °C

  • Highest 19 September, 2026

    28.4 °C

Climate (2021–2026)

Port Lincoln Airport (48km)

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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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