Cape Northumberland Weather Forecast

    • 5
    • 15

    Shower

    • 4
    • 16

    Shower

    • 9
    • 16

    Shower

    • 9
    • 14

    Rain

    • 7
    • 15

    Shower

    • 8
    • 15

    Shower

    • 7
    • 14

    Shower

Today 6 Aug Lower South East

Partly cloudy. Medium chance of showers, most likely in the afternoon and evening. Winds northerly 15 to 20 km/h turning west to northwesterly in the middle of the day then becoming light in the late afternoon. Overnight temperatures falling to around 4 with daytime temperatures reaching around 16.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
North to northwesterly 10 to 15 knots, reaching up to 20 knots south of Port MacDonnell in the late morning. Winds shifting south to southwesterly below 10 knots in the late morning and afternoon.
Seas
Around 1 metre.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. 70% 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

    8.8 °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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