Port Macdonnell Offshore Weather Forecast

    • 14
    • 15

    Shower

    • 13
    • 13

    Rain

    • 12
    • 13

    Windy

    • 11
    • 15

    Partly cloudy

    • 14
    • 20

    Shower

    • 15
    • 16

    Shower

    • 14
    • 16

    Shower

Today 25 Sep Lower South East

Cloudy. High chance of showers in the south, medium chance elsewhere. The chance of a thunderstorm near the eastern border. Light winds becoming west to southwesterly 15 to 20 km/h in the middle of the day then turning southerly in the early afternoon. Overnight temperatures falling to around 11 with daytime temperatures reaching between 18 and 22.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Variable about 10 knots becoming southerly 10 to 15 knots in the morning then tending southeasterly in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres during the morning, then increasing to 1.5 to 2 metres around midday.
Weather
Cloudy. 80% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Macdonnell Offshore Temperature Statistics View More

September Temperature

Mount Gambier Airport (44km)

  • Lowest 22 September, 2026

    -0.3 °C

  • Average September

    11.7 °C

  • Highest 19 September, 2026

    25.8 °C

Climate (2021–2026)

Mount Gambier Airport (44km)

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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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