Port Augusta Harbor Weather Forecast
- 16
- 27
Cloud clearing
- 16
- 28
Becoming windy. Sunny
- 16
- 30
Becoming windy. Sunny
- 16
- 34
Sunny
- 19
- 37
Sunny
- 20
- 40
Sunny
- 23
- 40
Mostly sunny
Today 23 Dec Flinders
Sunny. Winds southerly 25 to 35 km/h. Overnight temperatures falling to between 10 and 16 with daytime temperatures reaching 26 to 32.
Spencer Gulf Coastal Waters
- Wind
- South to southwesterly 15 to 20 knots, reaching up to 25 knots north of Cowell to Wallaroo during the afternoon and evening.
- Seas
- 1 to 1.5 metres, increasing to 1 to 2 metres during the afternoon.
- 1st Swell
- South to southwesterly around 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1 to 2 metres during the afternoon.
- Weather
- Partly cloudy.
Port Augusta Harbor Temperature Statistics View More
December Temperature
Port Augusta Airport (4km)
Lowest 2 December, 2025
12.1 °CAverage December
25.3 °CHighest 18 December, 2025
42.7 °C
Climate (2020–Present)
Port Augusta Airport (4km)
Average Low 2020–2025
12.4 °CAverage 2020–2025
18.8 °CAverage High 2020–2025
26.2 °C