Port Macdonnell Offshore Weather Forecast

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    Cloudy

Today 11 Apr Lower South East

Cloudy. Medium chance of showers in the south, slight chance elsewhere. Winds west to southwesterly 25 to 40 km/h decreasing to 20 to 30 km/h in the late evening.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southwesterly 25 to 30 knots.
Seas
2.5 to 3 metres.
1st Swell
Southwesterly 5 to 6 metres.
Weather
Cloudy. 70% chance of showers.
Weather Situation
A high pressure system south of WA extends a ridge over South Australia. This ridge will persist over SA this weekend as the high moves slowly east to be south of the Bight by tomorrow night. The high is forecast to hover over SA on Monday, then weaken and step back to the west on Tuesday allowing a series of fronts to pass over the southeast on Wednesday and Thursday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Macdonnell Offshore Temperature Statistics View More

April Temperature

Mount Gambier Airport (44km)

  • Lowest 4 April, 2026

    3.6 °C

  • Average April

    14.6 °C

  • Highest 5 April, 2026

    25.3 °C

Climate (2021–Present)

Mount Gambier Airport (44km)

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  • Average Low 2021–2026

    8.8 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    20 °C
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