Blanche Harbor Weather Forecast
- 18
- 22
Partly cloudy
- 14
- 20
Cloudy
- 13
- 23
Sunny
- 14
- 26
Mostly sunny
- 16
- 29
Mostly sunny
- 17
- 32
Sunny
- 20
- 28
Mostly sunny
Today 26 Mar Flinders
Clear. Winds southerly 25 to 35 km/h.
Spencer Gulf Coastal Waters
- Wind
- Southerly 20 to 30 knots.
- Seas
- 2.5 metres.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.
- Weather
- Cloudy.
- Weather Situation
- An upper level trough over southeast SA will continue to move eastwards, as a high pressure system starts to build southwest of the Bight. The high will become established south of SA by Friday, then moving eastwards over the weekend to be centred over the Tasman Sea on Monday. A low pressure system well to the south will link to a trough over the far west late Monday and into Tuesday.
Blanche Harbor Temperature Statistics View More
March Temperature
Port Augusta Airport (20km)
Lowest 12 March, 2026
13.8 °CAverage March
22.8 °CHighest 15 March, 2026
36.1 °C
Climate (2021–Present)
Port Augusta Airport (20km)
Average Low 2021–2026
12.5 °CAverage 2021–2026
18.9 °CAverage High 2021–2026
26.2 °C