Nene Valley Weather Forecast

    • 5
    • 19

    Shower

    • 13
    • 26

    Cloudy

    • 14
    • 21

    Shower

    • 11
    • 18

    Rain

    • 9
    • 15

    Partly cloudy

    • 6
    • 16

    Partly cloudy

    • 7
    • 17

    Partly cloudy

Today 28 Sep Lower South East

Partly cloudy. Slight chance of a shower in the south, becoming less likely later this evening. Near zero chance of rain elsewhere. Winds easterly 15 to 20 km/h becoming light in the late afternoon then becoming northeasterly 15 to 20 km/h in the evening.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Easterly 15 to 20 knots tending northeasterly in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system centred west of Tasmania extends a ridge northeastwards over the southeast of the continent. This high and ridge will move eastwards over the Tasman Sea overnight. A series of troughs will then move across from WA during the middle and later part of the week and a couple of cold fronts will move across waters to the south. A high pressure system will become established south of the Bight during Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Nene Valley Temperature Statistics View More

September Temperature

Mount Gambier Airport (35km)

  • Lowest 22 September, 2026

    -0.3 °C

  • Average September

    11.6 °C

  • Highest 19 September, 2026

    25.8 °C

Climate (2021–2026)

Mount Gambier Airport (35km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    20.1 °C
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