South Neptune Islands Weather Forecast

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Today 24 May Lower Eyre Peninsula

Partly cloudy. High chance of showers. The chance of a thunderstorm. Winds westerly 20 to 30 km/h turning northwesterly in the late afternoon.

Central Coastal Waters

Wind
Northwest to southwesterly 15 to 25 knots, reaching up to 30 knots in the west in the evening. Winds tending northwest to northeasterly in the evening then tending southeast to southwesterly 20 to 25 knots in the late evening.
Seas
Around 1 metre, increasing to 1 to 2 metres in the west.
1st Swell
Southwesterly 1.5 to 2.5 metres, increasing to 2 to 4 metres in the west.
Weather
Cloudy. 90% chance of showers. The chance of a thunderstorm.
Weather Situation
A cold front with an embedded low pressure system lies west of Kangaroo Island. The low is expected to move north and over the Eyre Peninsula tomorrow, weakening as it moves into NSW on Tuesday. A weak ridge of high pressure begins to move across SA later in the week.
Graph Plots Open in Graphs
  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

South Neptune Islands Temperature Statistics View More

May Temperature

Neptune Island (1km)

  • Lowest 3 May, 2026

    12.4 °C
  • Average May

    16.5 °C
  • Highest 1 May, 2026

    21.6 °C

Climate (2021–Present)

Neptune Island (1km)

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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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