Cape Northumberland Weather Forecast

    • 5
    • 16

    Partly cloudy

    • 8
    • 14

    Rain

    • 7
    • 15

    Shower

    • 11
    • 16

    Shower

    • 10
    • 16

    Shower

    • 8
    • 17

    Shower

    • 7
    • 17

    Partly cloudy

Today 10 Jul Lower South East

Partly cloudy. Winds northerly 15 to 20 km/h becoming light in the late afternoon then becoming northerly 15 to 25 km/h in the evening.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Northerly 15 to 20 knots, reaching up to 30 knots offshore in the late evening.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres offshore.
1st Swell
Southwesterly 2.5 metres.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A cold front in the Bight will move across the south of SA during Saturday followed by a weaker front on Monday. A high pressure system centred near southern WA will begin to dominate the weather pattern across SA mid next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Northumberland Temperature Statistics View More

July Temperature

Mount Gambier Airport (36km)

  • Lowest 7 July, 2026

    -1.1 °C

  • Average July

    8.2 °C

  • Highest 1 July, 2026

    16.7 °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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