Cape Northumberland Weather Forecast

    • 10
    • 18

    Shower

    • 10
    • 19

    Cloudy

    • 12
    • 20

    Shower

    • 9
    • 16

    Shower

    • 9
    • 18

    Cloudy

    • 7
    • 23

    Partly cloudy

    • 13
    • 26

    Partly cloudy

Today 4 Nov Lower South East

Partly cloudy. High chance of showers, becoming less likely in the afternoon. The chance of a thunderstorm in the late morning and afternoon. Winds westerly 30 to 45 km/h turning southwesterly 35 to 50 km/h in the early afternoon then decreasing to 25 to 35 km/h in the evening. Daytime maximum temperatures around 18.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southwesterly 20 to 25 knots, reaching up to 30 knots in the late afternoon.
Seas
2 to 2.5 metres.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system west of the Bight extends a ridge over SA. The high moves through the Bight on Thursday and over the eastern states on Friday, as a cold front clips the southeast on Friday. Another high pressure system moves over waters to the south of SA over the weekend. A developing low pressure system over WA moves closer to the border with SA on the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Northumberland Temperature Statistics View More

November Temperature

Mount Gambier Airport (36 km)

  • Lowest 3 November, 2026

    5.7 °C

  • Average November

    13.3 °C

  • Highest 1 November, 2026

    21.7 °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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