Williams Island Weather Forecast

    • 14
    • 16

    Partly cloudy

    • 14
    • 16

    Shower

    • 15
    • 15

    Shower

    • 14
    • 16

    Shower

    • 14
    • 15

    Partly cloudy

    • 14
    • 15

    Partly cloudy

    • 14
    • 15

    Cloudy

Today 17 Aug Lower Eyre Peninsula

Partly cloudy. Medium chance of showers, becoming less likely later this evening. Winds east to northeasterly 15 to 25 km/h becoming light in the evening.

Central Coastal Waters

Wind
Northeasterly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1 to 1.5 metres in the west.
1st Swell
Southwesterly 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system over the Tasman Sea extends a ridge over South Australia. A weakening cold front moves into far southwestern parts later on Tuesday and moves southeast across the state into Wednesday. Another high pressure system develops over the north of the state later Wednesday, with weak troughs clipping the southeast in a broad westerly flow on Thursday and Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Williams Island Temperature Statistics View More

August Temperature

Neptune Island (36km)

  • Lowest 4 August, 2026

    10.4 °C

  • Average August

    13.7 °C

  • Highest 7 August, 2026

    17.4 °C

Climate (2021–2026)

Neptune Island (36km)

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  • Average Low 2021–2026

    14.3 °C

  • Average 2021–2026

    16.2 °C

  • Average High 2021–2026

    18.8 °C
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