Cape Northumberland Weather Forecast

    • 10
    • 16

    Shower

    • 10
    • 16

    Shower

    • 11
    • 16

    Shower

    • 12
    • 19

    Shower

    • 10
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    Shower

    • 11
    • 18

    Partly cloudy

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    Shower

Today 10 Apr Lower South East

Partly cloudy. Very high chance of showers, most likely from late this morning. Winds westerly 35 to 50 km/h. Daytime maximum temperatures around 16.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Westerly 20 to 30 knots, reaching up to 35 knots south of Port MacDonnell early in the morning.
Seas
2.5 to 3 metres.
1st Swell
Westerly 4 metres.
Weather
Cloudy. 95% chance of showers, with possible small hail south of Port MacDonnell in the evening. The chance of a thunderstorm south of Port MacDonnell in the morning.
Weather Situation
A low pressure trough will move across waters to the south today then a high pressure system will move across waters south of WA on Saturday to be centred over the Bight on Sunday. This high will move slowly eastwards early next week and a weak cold front will move over southern coastal areas.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Northumberland Temperature Statistics View More

April Temperature

Mount Gambier Airport (36km)

  • Lowest 4 April, 2026

    3.6 °C

  • Average April

    15.1 °C

  • Highest 5 April, 2026

    25.3 °C

Climate (2021–Present)

Mount Gambier Airport (36km)

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  • Average Low 2021–2026

    8.8 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    20 °C
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