Port Macdonnell Offshore Weather Forecast

    • 13
    • 13

    Shower

    • 12
    • 12

    Windy

    • 11
    • 15

    Cloudy

    • 14
    • 20

    Partly cloudy

    • 16
    • 16

    Shower

    • 14
    • 15

    Shower

    • 13
    • 14

    Shower

Today 26 Sep Lower South East

Cloudy. Very high chance of showers, most likely in the morning and afternoon. The chance of a thunderstorm in the morning. Winds southerly 15 to 20 km/h turning southeasterly 25 to 35 km/h during the morning and early afternoon. Overnight temperatures falling to around 9 with daytime temperatures reaching around 16.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southerly 10 to 15 knots turning southeasterly 15 to 25 knots during the morning.
Seas
Around 1 metre, increasing to 1 to 2 metres during the morning.
1st Swell
Southwesterly 2 metres, increasing to 2 to 3 metres during the morning.
Weather
Cloudy. 60% chance of showers. The chance of a thunderstorm north of Beachport in the morning.
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

    11.8 °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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