Cape Northumberland Weather Forecast

    • 11
    • 20

    Cloudy

    • 13
    • 22

    Windy

    • 13
    • 26

    Sunny

    • 17
    • 35

    Partly cloudy

    • 20
    • 31

    Shower

    • 13
    • 22

    Partly cloudy

    • 14
    • 24

    Cloudy

Today 13 Feb Lower South East

Clear. Winds southeasterly 15 to 25 km/h.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southeasterly 15 to 20 knots, reaching up to 25 knots north of Beachport.
Seas
Around 1 metre, increasing to 1.5 to 2 metres north of Port MacDonnell.
1st Swell
Southwesterly 3 metres.
Weather
Cloudy.
Weather Situation
A high pressure system south of the Bight extends a ridge across the state that will persist into the weekend. A trough will move into the far west on Monday before moving across the south and west on Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Northumberland Temperature Statistics View More

February Temperature

Mount Gambier Airport (36km)

  • Lowest 2 February, 2026

    4.9 °C

  • Average February

    16.8 °C

  • Highest 3 February, 2026

    32.2 °C

Climate (2021–Present)

Mount Gambier Airport (36km)

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  • Average Low 2021–2026

    8.8 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    20 °C
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