Port Macdonnell Offshore Weather Forecast

    • 15
    • 17

    Cloudy

    • 15
    • 17

    Cloudy

    • 16
    • 20

    Partly cloudy

    • 17
    • 22

    Partly cloudy

    • 18
    • 19

    Shower

    • 16
    • 17

    Partly cloudy

    • 16
    • 16

    Partly cloudy

Today 28 Mar Lower South East

Cloudy. Slight chance of a shower in the morning and early afternoon. Winds southwesterly 15 to 20 km/h tending southerly 15 to 25 km/h in the early morning then becoming light in the evening. Daytime maximum temperatures in the low 20s.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southerly 10 to 15 knots, reaching up to 20 knots south of Beachport during the morning.
Seas
1 to 1.5 metres, decreasing below 1 metre around midday.
1st Swell
Southwesterly 2.5 metres.
Weather
Cloudy.
Weather Situation
A high pressure system south of the Bight will move slowly eastwards over the weekend to be centred over the Tasman Sea on Monday. A trough is forecast to enter the far west on Tuesday before sliding over southern parts of SA on Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Macdonnell Offshore Temperature Statistics View More

March Temperature

Mount Gambier Airport (44km)

  • Lowest 10 March, 2026

    7.2 °C

  • Average March

    16.2 °C

  • Highest 23 March, 2026

    31.5 °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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