Cape Northumberland Weather Forecast

    • 8
    • 14

    Shower

    • 3
    • 15

    Shower

    • 8
    • 16

    Shower

    • 9
    • 15

    Shower

    • 6
    • 15

    Partly cloudy

    • 5
    • 15

    Cloudy

    • 6
    • 16

    Shower

Today 21 Jun Lower South East

Partly cloudy. The chance of morning fog. Slight chance of a shower, most likely in the late morning and afternoon. Light winds. Daytime maximum temperatures around 14.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
South to southeasterly 10 to 15 knots decreasing to below 10 knots in the morning.
Seas
Below 1 metre.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Cloudy.
Weather Situation
A high pressure system centred over the Bight will move slowly eastwards into Monday. A cold front will move across southern coastal districts on Tuesday ahead of a new high moving across waters to the south mid to late next week.
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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

    11.9 °C

  • Highest 12 June, 2026

    20.1 °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 °C
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