Williams Island Weather Forecast

    • 19
    • 20

    Sunny

    • 18
    • 19

    Shower

    • 18
    • 19

    Shower

    • 17
    • 17

    Cloudy

    • 17
    • 18

    Partly cloudy

    • 18
    • 19

    Sunny

    • 18
    • 19

    Partly cloudy

Today 5 May Lower Eyre Peninsula

Sunny. Winds northwesterly 25 to 40 km/h tending westerly 25 to 35 km/h in the early afternoon then becoming light in the evening. Daytime maximum temperatures in the mid to high 20s.

Central Coastal Waters

Wind
Northwesterly 15 to 20 knots turning westerly in the late morning.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly 4 to 5 metres.
Weather
Sunny.
Weather Situation
A weak trough will sweep across coastal waters with settled conditions following on Tuesday, before a weak cold front will skim the southern coasts through Wednesday morning. A new high pressure system will begin ridging over coastal waters on Wednesday, establishing in the Bight that evening, before drifting over the south of the state through Thursday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Williams Island Temperature Statistics View More

May Temperature

Neptune Island (36km)

  • Lowest 1 May, 2025

    14.1 °C

  • Average May

    17.9 °C

  • Highest 2 May, 2025

    21.1 °C

Climate (2020–Present)

Neptune Island (36km)

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  • Average Low 2020–2025

    14.2 °C

  • Average 2020–2025

    16.2 °C

  • Average High 2020–2025

    19 °C
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