Cape Northumberland Weather Forecast

    • 13
    • 17

    Rain

    • 12
    • 17

    Rain

    • 9
    • 15

    Shower

    • 10
    • 14

    Shower

    • 7
    • 14

    Shower

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    • 15

    Shower

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    Shower

Today 17 Jun Lower South East

Cloudy. Very high chance of showers. Winds north to northeasterly 15 to 25 km/h. Daytime maximum temperatures around 18.

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
Around 1 metre, increasing to 1 to 1.5 metres offshore.
1st Swell
Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres later in the evening.
Weather
Cloudy. Near 100% chance of rain. The chance of a thunderstorm north of Port MacDonnell.
Weather Situation
A cold front over South Australia will continue to move east overnight to clear the state by midday Thursday. A second cold front will move across the west Thursday afternoon reaching central and eastern parts early Friday morning. A cooler, fresh southerly flow following the second front will gradually ease as a high pressure system drifts in from the west for the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Northumberland Temperature Statistics View More

June Temperature

Mount Gambier Airport (36km)

  • Lowest 15 June, 2026

    2.4 °C
  • Average June

    11.7 °C
  • Highest 12 June, 2026

    20.1 °C

Climate (2021–Present)

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 °C
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