MacDonnell Bay Weather Forecast

    • 10
    • 17

    Partly cloudy

    • 8
    • 20

    Partly cloudy

    • 12
    • 23

    Shower

    • 11
    • 16

    Shower

    • 6
    • 20

    Cloudy

    • 14
    • 24

    Shower

    • 12
    • 17

    Shower

Today 14 Oct Lower South East

Slight chance of a shower early this morning. Mostly sunny afternoon. Winds westerly 15 to 25 km/h becoming light in the evening. Daytime maximum temperatures around 18.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Westerly 15 to 20 knots, reaching up to 25 knots south of Port MacDonnell early in the morning.
Seas
1 to 2 metres, decreasing to 1 to 1.5 metres around midday.
1st Swell
West to southwesterly 2 to 3 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system building over the Bight will continue to move eastwards across SA then out over the Tasman Sea by Wednesday. A weak cold front is moving across southern coastal waters early this morning then a more significant front will move over the far western coastal waters late Wednesday and over remaining waters on Thursday. The next high will move south of the Bight on Friday before moving out over the Tasman Sea on Saturday. Another cold front will move over the coastal waters over the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

MacDonnell Bay Temperature Statistics View More

October Temperature

Mount Gambier Airport (34km)

  • Lowest 13 October, 2025

    4.3 °C

  • Average October

    12.2 °C

  • Highest 4 October, 2025

    24.1 °C

Climate (2020–Present)

Mount Gambier Airport (34km)

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  • Average Low 2020–2025

    8.9 °C

  • Average 2020–2025

    13.7 °C

  • Average High 2020–2025

    20 °C
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