Blanche Harbor Weather Forecast
- 22
- 40
Sunny. Late cool change
- 18
- 34
Partly cloudy
- 19
- 26
Morning shower or two. Windy
- 14
- 25
Sunny
- 14
- 33
Sunny
- 17
- 34
Sunny
- 19
- 35
Mostly sunny
Today 4 Dec Flinders
Sunny. Winds northwest to northeasterly 25 to 40 km/h becoming northwesterly 25 to 35 km/h in the middle of the day then tending northwest to northeasterly 15 to 25 km/h in the late evening. Overnight temperatures falling to between 16 and 21 with daytime temperatures reaching 34 to 39.
Spencer Gulf Coastal Waters
- Wind
- Northerly 15 to 20 knots shifting southerly during the afternoon and evening. Winds reaching up to 25 knots inshore during the afternoon and evening.
- Seas
- 1 to 1.5 metres, decreasing to 1 metre around midday, then increasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo during the morning.
- Weather
- Partly cloudy.
Blanche Harbor Temperature Statistics View More
December Temperature
Port Augusta Airport (20km)
Lowest 2 December, 2025
12.1 °CAverage December
19.7 °CHighest 2 December, 2025
28.5 °C
Climate (2020–Present)
Port Augusta Airport (20km)
Average Low 2020–2025
12.4 °CAverage 2020–2025
18.8 °CAverage High 2020–2025
26.1 °C