Port Augusta Harbor Weather Forecast

    • 6
    • 23

    Clear

    • 10
    • 26

    Mostly sunny

    • 17
    • 31

    Shower or two. Windy

    • 12
    • 21

    Shower or two

    • 7
    • 21

    Sunny

    • 9
    • 31

    Possible late shower

    • 12
    • 24

    Shower or two

Today 13 Sep Flinders

Clear. Winds north to northeasterly 15 to 20 km/h.

Spencer Gulf Coastal Waters

Wind
Northeasterly 10 to 15 knots turning northerly in the late evening.
Seas
Below 1 metre.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Weather
Clear.
Weather Situation
A high pressure system over NSW will move into the Tasman Sea on Sunday whilst maintaining a north to northwesterly airstream across coastal waters. A cold front will move across coastal waters on Monday, followed by another high pressure system on Tuesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Augusta Harbor Temperature Statistics View More

September Temperature

Whyalla Airport (65km)

  • Lowest 1 September, 2025

    2.8 °C

  • Average September

    14.6 °C

  • Highest 6 September, 2025

    33.8 °C

Climate (2020–Present)

Whyalla Airport (65km)

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  • Average Low 2020–2025

    11.9 °C

  • Average 2020–2025

    17.5 °C

  • Average High 2020–2025

    23.8 °C
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