MacDonnell Bay Weather Forecast

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    Partly cloudy

    • 13
    • 22

    Shower

    • 13
    • 19

    Shower

    • 12
    • 18

    Shower

    • 9
    • 17

    Shower

    • 11
    • 17

    Shower

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    Shower

Today 14 May Lower South East

Mostly sunny. Winds northeasterly 15 to 20 km/h becoming light in the late afternoon then becoming northeasterly 15 to 20 km/h in the late evening. Daytime maximum temperatures in the low 20s.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Northeasterly 10 to 15 knots, reaching up to 20 knots south of Port MacDonnell in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 metres, increasing to 1.5 to 2.5 metres during the afternoon.
Weather
Mostly sunny.
Weather Situation
A strong high pressure system in the Tasman Sea is slowly moving east. A cold front will move east across the Southern Ocean over the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

MacDonnell Bay Temperature Statistics View More

May Temperature

Mount Gambier Airport (34km)

  • Lowest 7 May, 2026

    5.5 °C

  • Average May

    13.9 °C

  • Highest 1 May, 2026

    28.5 °C

Climate (2021–Present)

Mount Gambier Airport (34km)

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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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