Cape Northumberland Weather Forecast

    • 14
    • 26

    Partly cloudy

    • 17
    • 27

    Cloudy

    • 16
    • 21

    Storm

    • 12
    • 20

    Cloudy

    • 12
    • 28

    Cloudy

    • 14
    • 22

    Shower

    • 10
    • 18

    Shower

Today 18 Oct Lower South East

Mostly sunny. Slight chance of a shower. Winds northeasterly 15 to 20 km/h becoming light in the early morning then becoming northeasterly 15 to 25 km/h in the morning. Overnight temperatures falling to around 12 with daytime temperatures reaching the mid to high 20s.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Northeasterly 10 to 15 knots.
Seas
Around 1 metre.
1st Swell
Southwesterly around 1 metre, increasing to 1 to 1.5 metres during the morning.
Weather
Sunny.
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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

    13.4 °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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