Cape Northumberland Weather Forecast

    • 7
    • 19

    Clear

    • 8
    • 24

    Partly cloudy

    • 12
    • 25

    Partly cloudy

    • 14
    • 26

    Partly cloudy

    • 16
    • 27

    Partly cloudy

    • 17
    • 24

    Shower

    • 12
    • 21

    Cloudy

Today 15 Oct Lower South East

Clear. Light winds.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Easterly 10 to 15 knots.
Seas
Below 0.5 metres, increasing to below 1 metre south of Beachport.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Clear.
Weather Situation
A high pressure system moving over the Tasman Sea extends a ridge over eastern SA until early next week, while a trough lies through the far northwest, before weakening over the weekend. A cold front is forecast to cross the Bight on Monday, extending a trough over western and southern SA.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Northumberland Temperature Statistics View More

October Temperature

Mount Gambier Airport (36 km)

  • Lowest 7 October, 2026

    2.8 °C

  • Average October

    12.9 °C

  • Highest 11 October, 2026

    25.5 °C

Climate (2021–2026)

Mount Gambier Airport (36 km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    13.8 °C

  • Average High 2021–2026

    20.1 °C
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