Cape Northumberland Weather Forecast

    • 2
    • 16

    Shower

    • 8
    • 14

    Shower

    • 8
    • 15

    Rain

    • 8
    • 15

    Shower

    • 8
    • 14

    Shower

    • 8
    • 14

    Shower

    • 9
    • 15

    Shower

Today 7 Aug Lower South East

Partly cloudy. The chance of morning fog. Medium chance of showers, most likely at night. Light winds becoming northwest to northeasterly 15 to 20 km/h in the morning then becoming light in the late afternoon. Overnight temperatures falling to around 2 with daytime temperatures reaching around 17.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Variable below 10 knots becoming northerly 10 to 15 knots in the early morning. Winds reaching up to 20 knots north of Beachport in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 3 metres.
Weather
Partly cloudy. 50% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Northumberland Temperature Statistics View More

August Temperature

Mount Gambier Airport (36km)

  • Lowest 1 August, 2026

    0.3 °C

  • Average August

    8.5 °C

  • Highest 2 August, 2026

    15.7 °C

Climate (2021–2026)

Mount Gambier Airport (36km)

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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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