Port Macdonnell Weather Forecast

    • 12
    • 17

    Rain

    • 11
    • 19

    Shower

    • 12
    • 18

    Cloudy

    • 12
    • 18

    Shower

    • 11
    • 17

    Cloudy

    • 11
    • 19

    Cloudy

    • 10
    • 24

    Partly cloudy

Today 21 Dec Lower South East

Cloudy. Very high chance of rain, most likely in the morning and afternoon. The chance of a thunderstorm in the morning. Winds southeasterly 15 to 20 km/h turning southwesterly 25 to 40 km/h in the middle of the day. Overnight temperatures falling to around 10 with daytime temperatures reaching between 18 and 22.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southeasterly 15 to 20 knots turning southwesterly 15 to 25 knots in the middle of the day.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2 metres during the afternoon.
1st Swell
Southerly 1 to 2 metres, tending southwesterly 1 to 1.5 metres during the morning, then decreasing to around 1 metre by early evening.
Weather
Cloudy. 90% chance of rain. The chance of a thunderstorm north of Port MacDonnell in the early morning.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Macdonnell Temperature Statistics View More

December Temperature

Mount Gambier Airport (34km)

  • Lowest 7 December, 2025

    4.7 °C

  • Average December

    16.2 °C

  • Highest 18 December, 2025

    38.9 °C

Climate (2020–Present)

Mount Gambier Airport (34km)

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  • Average Low 2020–2025

    8.8 °C

  • Average 2020–2025

    13.6 °C

  • Average High 2020–2025

    19.9 °C
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