South Neptune Islands Weather Forecast

    • 13
    • 15

    Cloudy

    • 14
    • 17

    Partly cloudy

    • 16
    • 18

    Shower

    • 15
    • 16

    Shower

    • 16
    • 17

    Partly cloudy

    • 17
    • 18

    Partly cloudy

    • 17
    • 18

    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.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

South Neptune Islands Temperature Statistics View More

September Temperature

Cape Borda (64km)

  • Lowest 17 September, 2026

    5 °C

  • Average September

    12.7 °C

  • Highest 18 September, 2026

    18.6 °C

Climate (2021–2026)

Cape Borda (64km)

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  • Average Low 2021–2026

    11.7 °C

  • Average 2021–2026

    14.9 °C

  • Average High 2021–2026

    19 °C
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