Cape Northumberland Weather Forecast

    • 17
    • 27

    Cloudy

    • 15
    • 22

    Storm

    • 12
    • 21

    Cloudy

    • 12
    • 30

    Partly cloudy

    • 15
    • 27

    Shower

    • 13
    • 23

    Shower

    • 10
    • 17

    Shower

Today 19 Oct Lower South East

Mostly sunny morning. Slight chance of a shower in the afternoon and evening. The chance of a thunderstorm in the south in the afternoon. Winds northeasterly 15 to 25 km/h turning northerly 25 to 35 km/h in the morning then decreasing to 15 to 25 km/h in the late afternoon. Overnight temperatures falling to between 14 and 17 with daytime temperatures reaching the mid to high 20s.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
North to northeasterly 15 to 20 knots, reaching up to 25 knots offshore during the morning. Winds tending north to northwesterly 10 to 15 knots during the day.
Seas
1 to 2 metres, decreasing to 1 metre by early evening.
1st Swell
Southwesterly 2 metres.
Weather
Partly cloudy.
Graph Plots Open in Graphs

  • 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

    13.7 °C

  • Highest 17 October, 2026

    25.8 °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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