MacDonnell Bay Weather Forecast

    • 11
    • 15

    Shower

    • 10
    • 16

    Shower

    • 8
    • 16

    Shower

    • 9
    • 13

    Shower

    • 8
    • 13

    Shower

    • 5
    • 13

    Shower

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    Cloudy

Today 25 Jul Lower South East

Cloudy. High chance of showers. Winds westerly 15 to 25 km/h becoming light in the late evening. Daytime maximum temperatures around 16.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
West to southwesterly 15 to 20 knots, reaching up to 25 knots south of Port MacDonnell early in the morning.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres south of Port MacDonnell.
1st Swell
Southwesterly 2.5 to 3 metres, increasing to 3 to 4 metres south of Beachport.
Weather
Partly cloudy. 80% chance of showers.
Weather Situation
A high pressure system centred over the Bight will slowly drift northeastwards today while a weak trough embedded in the southwesterly flow around the high will clip the southeast of the State during the morning. The high will move north over South Australia on Sunday and eastern states early next week, with a cold front pushing over the west of the State on Monday and move over remaining parts on Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

MacDonnell Bay Temperature Statistics View More

July Temperature

Mount Gambier Airport (34km)

  • Lowest 7 July, 2026

    -1.1 °C

  • Average July

    9.2 °C

  • Highest 1 July, 2026

    16.7 °C

Climate (2021–2026)

Mount Gambier Airport (34km)

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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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