Cape Northumberland Weather Forecast

    • 6
    • 19

    Clear

    • 7
    • 24

    Sunny

    • 15
    • 23

    Shower

    • 11
    • 18

    Shower

    • 10
    • 22

    Shower

    • 13
    • 18

    Shower

    • 6
    • 14

    Shower

Today 7 Oct Lower South East

Clear. Light winds.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Northeast to southeasterly 10 to 15 knots, reaching up to 20 knots south of Port MacDonnell in the evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 3 to 4 metres.
Weather
Clear.
Weather Situation
A high pressure system located near Tasmania maintains a ridge over the state as it moves east into the Tasman Sea. A trough ahead of a strong cold front is expected move over western SA on Thursday, and track east across the rest of SA on Friday. A ridge remains over northern SA on Saturday while a series of troughs and cold fronts move across the state early next week.
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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 4 October, 2026

    6 °C
  • Average October

    12.5 °C
  • Highest 5 October, 2026

    18.5 °C

Climate (2021–2026)

Mount Gambier Airport (36 km)

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  • Average Low 2021–2026

    8.9 °C
  • Average 2021–2026

    13.7 °C
  • Average High 2021–2026

    20.1 °C
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