Port Macdonnell Weather Forecast

    • 6
    • 13

    Shower

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    • 14

    Shower

    • 4
    • 15

    Cloudy

    • 3
    • 15

    Partly cloudy

    • 3
    • 18

    Partly cloudy

    • 8
    • 19

    Cloudy

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    Shower

Today 16 Aug Lower South East

Cloudy. Very high chance of showers, most likely later this evening. Winds north to northwesterly 15 to 25 km/h.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Northwesterly 15 to 25 knots, reaching up to 30 knots north of Beachport in the evening. Winds tending westerly 15 to 20 knots in the late evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres north of Beachport.
1st Swell
Southwesterly 4 to 5 metres.
Weather
Cloudy. 90% chance of showers. The chance of a thunderstorm.
Weather Situation
A cold front will pass over the southern coasts late on Saturday with the associated low pressure system moving over the south east on Sunday. A high pressure system over WA extends a ridge over western waters, before moving into the Bight late Sunday. The high will then move southeastwards towards Tasmania early in the week, whilst continuing to extend a ridge over coastal waters.
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  • Temperature Forecast Bureau of Meteorology

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Port Macdonnell Temperature Statistics View More

August Temperature

Mount Gambier Airport (34km)

  • Lowest 2 August, 2025

    0 °C
  • Average August

    10.1 °C
  • Highest 10 August, 2025

    18.7 °C

Climate (2020–Present)

Mount Gambier Airport (34km)

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  • Average Low 2020–2025

    8.8 °C
  • Average 2020–2025

    13.7 °C
  • Average High 2020–2025

    20 °C
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