Cape Douglas Offshore Weather Forecast

    • 12
    • 12

    Windy

    • 10
    • 15

    Shower

    • 14
    • 21

    Windy

    • 15
    • 16

    Shower

    • 14
    • 15

    Shower

    • 12
    • 13

    Partly cloudy

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    • 13

    Cloudy

Today 27 Sep Lower South East

Partly cloudy. Winds southeasterly 15 to 25 km/h. Daytime maximum temperatures around 17.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southeasterly 15 to 20 knots, reaching up to 25 knots north of Port MacDonnell in the evening. Winds turning easterly in the evening.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres inshore.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy.
Weather Situation
A trough over central Australia will weaken and contract into WA as a ridge of high pressure extends across southeastern SA. The high pressure system is expected to drift into the Tasman Sea by Tuesday as the trough in WA begins to re-extend over western SA on Tuesday, pushing into the state on Wednesday and reaching the far northeast on Thursday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Douglas Offshore Temperature Statistics View More

September Temperature

Mount Gambier Airport (43km)

  • Lowest 22 September, 2026

    -0.3 °C

  • Average September

    11.8 °C

  • Highest 19 September, 2026

    25.8 °C

Climate (2021–2026)

Mount Gambier Airport (43km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    20.1 °C
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