Cape Northumberland Weather Forecast

    • 8
    • 19

    Cloudy

    • 6
    • 25

    Partly cloudy

    • 12
    • 24

    Partly cloudy

    • 11
    • 17

    Cloudy

    • 10
    • 18

    Cloudy

    • 9
    • 22

    Partly cloudy

    • 11
    • 21

    Shower

Today 8 Nov Lower South East

Partly cloudy. The chance of frost in the north early this morning. Light winds becoming easterly 15 to 20 km/h in the morning then becoming light in the late evening. Daytime maximum temperatures around 20.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southeasterly 10 to 15 knots turning easterly 15 to 20 knots early in the morning.
Seas
Around 1 metre, increasing to 1 to 1.5 metres south of Beachport during the afternoon.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Cloudy.
Weather Situation
A high pressure system centred south of SA will continue to drift eastwards, while a weak low pressure system and trough in WA move east across the SA border. The high will drift southeast of Tasmania by Monday, while the trough and low drift eastwards across SA, clearing to the east late Tuesday. Another high will develop south of the state on Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Northumberland Temperature Statistics View More

November Temperature

Mount Gambier Airport (36 km)

  • Lowest 7 November, 2026

    5.3 °C

  • Average November

    12.9 °C

  • Highest 3 November, 2026

    23 °C

Climate (2021–2026)

Mount Gambier Airport (36 km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    13.8 °C

  • Average High 2021–2026

    20.1 °C
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