Williams Island Weather Forecast

    • 19
    • 19

    Cloudy

    • 17
    • 18

    Shower

    • 16
    • 17

    Cloudy

    • 16
    • 18

    Cloudy

    • 17
    • 19

    Cloudy

    • 18
    • 20

    Partly cloudy

    • 20
    • 21

    Partly cloudy

Today 25 Mar Lower Eyre Peninsula

Partly cloudy. Medium chance of showers, most likely during this afternoon and evening. The chance of a thunderstorm during this afternoon and evening. Winds southerly 15 to 25 km/h increasing to 20 to 30 km/h in the middle of the day. Daytime maximum temperatures 23 to 28.

Central Coastal Waters

Wind
Southerly about 10 knots increasing to 15 to 20 knots in the early morning.
Seas
Below 1 metre, increasing to 1 to 1.5 metres around midday.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Partly cloudy. The chance of a thunderstorm this morning.
Weather Situation
A broad trough lies over SA. A cold front clips the southeast as an upper trough moves up over SA today and tomorrow. A high pressure system develops south of the Bight late in the week and persists over the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Williams Island Temperature Statistics View More

March Temperature

Neptune Island (36km)

  • Lowest 9 March, 2026

    14.8 °C

  • Average March

    18.6 °C

  • Highest 10 March, 2026

    24 °C

Climate (2021–Present)

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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