Blanche Harbor Weather Forecast
- 8
- 20
Mostly sunny
- 13
- 17
Rain
- 14
- 17
Showers easing
- 8
- 18
Partly cloudy
- 8
- 20
Sunny
- 10
- 20
Partly cloudy
- 10
- 20
Sunny
Today 23 Aug Flinders
Mostly sunny. Winds north to northeasterly 15 to 20 km/h. Daytime maximum temperatures between 16 and 20.
Spencer Gulf Coastal Waters
- Wind
- Northeasterly 10 to 15 knots.
- Seas
- Below 1 metre.
- 1st Swell
- South to southwesterly around 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.
- Weather
- Mostly sunny.
- Weather Situation
- A high pressure system centred over the eastern states continue to drift slowly east as a low pressure system and associated trough move into the far western SA later today and then moves across the state on Monday and out over the eastern states by later Tuesday. Another high moves into the west later Tuesday and over SA on Wednesday.
Blanche Harbor Temperature Statistics View More
August Temperature
Port Augusta Airport (20km)
Lowest 1 August, 2026
-1.1 °CAverage August
12.2 °CHighest 19 August, 2026
22.8 °C
Climate (2021–2026)
Port Augusta Airport (20km)
Average Low 2021–2026
12.6 °CAverage 2021–2026
19 °CAverage High 2021–2026
26.2 °C