Cape Northumberland Weather Forecast

    • 9
    • 13

    Rain

    • 8
    • 14

    Shower

    • 10
    • 14

    Shower

    • 8
    • 14

    Shower

    • 4
    • 15

    Partly cloudy

    • 3
    • 15

    Partly cloudy

    • 5
    • 15

    Partly cloudy

Today 2 Jul Lower South East

Cloudy. Very high chance of showers. The chance of a thunderstorm near the coast. Possible small hail in the late afternoon and evening. Damaging winds possible near the coast. Winds northwesterly 30 to 45 km/h. Overnight temperatures falling to around 9 with daytime temperatures reaching around 14.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Northwesterly 30 to 35 knots turning westerly 30 to 40 knots during the morning and early afternoon.
Seas
3 metres, increasing to 3 to 5 metres south of Beachport.
1st Swell
Southwesterly 1.5 to 2.5 metres, tending westerly 3 to 5 metres during the morning, then increasing to 5 to 8 metres during the afternoon.
Weather
Cloudy. Near 100% chance of showers. The chance of a thunderstorm. Possible small hail in the late afternoon and evening.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Northumberland Temperature Statistics View More

July Temperature

Mount Gambier Airport (36km)

  • Lowest 1 July, 2026

    10.2 °C

  • Average July

    11.9 °C

  • Highest

    –

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 °C
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