Cape Northumberland Weather Forecast

    • 10
    • 14

    Shower

    • 10
    • 16

    Shower

    • 12
    • 18

    Shower

    • 9
    • 17

    Shower

    • 8
    • 17

    Partly cloudy

    • 9
    • 18

    Partly cloudy

    • 12
    • 17

    Shower

Today 4 Jun Lower South East

Cloudy. Medium chance of showers near the coast, slight chance elsewhere. Winds southwesterly 25 to 35 km/h decreasing to 15 to 25 km/h in the evening.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southwesterly 20 to 25 knots, reaching up to 30 knots south of Port MacDonnell in the late afternoon.
Seas
1.5 to 2.5 metres.
1st Swell
Southerly 2 to 3 metres.
Weather
Cloudy. 60% chance of showers.
Weather Situation
A broad southwesterly flow over SA waters will tend west to northwesterly as a high pressure system over southern WA moves steadily eastwards across northern SA on Friday and Saturday, reaching NSW on Sunday and the Tasman Sea by Monday. Northerly winds freshen from the west on Tuesday ahead of a mid-week southwesterly change.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Northumberland Temperature Statistics View More

June Temperature

Mount Gambier Airport (36km)

  • Lowest 1 June, 2026

    6.9 °C

  • Average June

    11.3 °C

  • Highest 2 June, 2026

    16.8 °C

Climate (2021–Present)

Mount Gambier Airport (36km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    20 °C
Get WillyWeather+ to remove ads