Port Macdonnell Offshore Weather Forecast

    • 15
    • 16

    Shower

    • 15
    • 16

    Shower

    • 14
    • 16

    Partly cloudy

    • 12
    • 16

    Partly cloudy

    • 12
    • 16

    Shower

    • 13
    • 15

    Shower

    • 14
    • 15

    Shower

Today 19 May Lower South East

Partly cloudy. High chance of showers, most likely later tonight. Winds west to northwesterly 15 to 20 km/h tending west to southwesterly 20 to 30 km/h in the early morning. Daytime maximum temperatures around 17.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southwesterly 15 to 20 knots turning westerly in the evening.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. 80% chance of showers.
Weather Situation
A ridge of high pressure lies across SA. A cold front clipped the southeast this morning, followed by a high pressure system which becomes dominant. The high is expected to move into the Tasman Sea by Friday as a cold front moves across the Bight.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Macdonnell Offshore Temperature Statistics View More

May Temperature

Mount Gambier Airport (44km)

  • Lowest 7 May, 2026

    5.5 °C

  • Average May

    14 °C

  • Highest 1 May, 2026

    28.5 °C

Climate (2021–Present)

Mount Gambier Airport (44km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    20 °C
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