South Neptune Islands Weather Forecast

    • 19
    • 20

    Windy

    • 16
    • 16

    Windy

    • 15
    • 16

    Windy

    • 15
    • 18

    Sunny

    • 17
    • 18

    Partly cloudy

    • 17
    • 18

    Cloudy

    • 17
    • 17

    Partly cloudy

Today 29 Dec Lower Eyre Peninsula

Mostly sunny. Winds north to northeasterly 15 to 20 km/h shifting south to southwesterly 25 to 40 km/h in the morning. Daytime maximum temperatures 30 to 38.

Central Coastal Waters

Wind
Southerly about 10 knots increasing to 15 to 25 knots in the early morning.
Seas
Around 1 metre, increasing to 1 to 2 metres during the afternoon.
1st Swell
Southwesterly 2 to 3 metres, decreasing to 2 metres during the afternoon.
Weather
Partly cloudy.
Weather Situation
A high pressure high centre sits over the Tasman Sea today while a trough builds over western SA. The trough slowly moves eastwards today and Tuesday while another high centre moves south of the Bight from the west. The trough is expected to linger near the far northeast of SA on Wednesday and Thursday with a persistent ridge of high pressure south of the Bight.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

South Neptune Islands Temperature Statistics View More

December Temperature

Cape Borda (64km)

  • Lowest 7 December, 2025

    9.2 °C

  • Average December

    17.1 °C

  • Highest 18 December, 2025

    33.2 °C

Climate (2020–Present)

Cape Borda (64km)

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  • Average Low 2020–2025

    11.7 °C

  • Average 2020–2025

    14.8 °C

  • Average High 2020–2025

    18.8 °C
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