Cape Douglas Weather Forecast

    • 11
    • 16

    Shower

    • 9
    • 15

    Shower

    • 6
    • 20

    Partly cloudy

    • 8
    • 16

    Shower

    • 8
    • 14

    Shower

    • 9
    • 15

    Shower

    • 9
    • 15

    Shower

Today 16 Sep Lower South East

Partly cloudy. High chance of showers, most likely in the morning and afternoon. The chance of a thunderstorm in the morning and afternoon. Winds northwesterly 25 to 35 km/h turning westerly 30 to 45 km/h in the late morning. Overnight temperatures falling to around 10 with daytime temperatures reaching around 16.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Northwesterly 25 to 30 knots turning westerly early in the morning. Winds reaching up to 35 knots south of Port MacDonnell in the early afternoon.
Seas
2.5 to 3 metres.
1st Swell
Westerly 2.5 to 4 metres, increasing to 4 to 6 metres around midday.
Weather
Partly cloudy. 80% chance of showers, with possible small hail south of Port MacDonnell at night. The chance of a thunderstorm in the morning and afternoon.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Douglas Temperature Statistics View More

September Temperature

Mount Gambier Airport (35km)

  • Lowest 5 September, 2025

    -0.2 °C

  • Average September

    11.5 °C

  • Highest 14 September, 2025

    21.9 °C

Climate (2020–Present)

Mount Gambier Airport (35km)

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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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