MacDonnell Bay Weather Forecast

    • 7
    • 14

    Shower

    • 6
    • 15

    Shower

    • 6
    • 16

    Shower

    • 7
    • 13

    Shower

    • 5
    • 13

    Shower

    • 5
    • 15

    Shower

    • 5
    • 13

    Shower

Today 19 Jul Lower South East

Partly cloudy. High chance of showers, most likely this morning. The chance of a thunderstorm in the south. Winds northerly 25 to 35 km/h turning westerly 30 to 45 km/h in the late morning then tending west to northwesterly 15 to 25 km/h in the late afternoon. Daytime maximum temperatures around 15.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Northwesterly 25 to 35 knots turning westerly 20 to 30 knots in the morning.
Seas
2.5 to 4 metres, decreasing to 2 to 2.5 metres by early evening.
1st Swell
Westerly 5 to 6 metres.
Weather
Partly cloudy. 95% chance of showers. The chance of a thunderstorm with possible squalls above 40 knots.
Weather Situation
A high pressure ridge will persist over SA through to the weekend. A cold front has crossed the southern coasts this morning, with a stronger cold front expected to sweep across coastal waters from Monday, exiting the south eastern coasts on Tuesday morning.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

MacDonnell Bay Temperature Statistics View More

July Temperature

Mount Gambier Airport (34km)

  • Lowest 3 July, 2025

    0.4 °C

  • Average July

    9.1 °C

  • Highest 5 July, 2025

    16.6 °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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