Blanche Harbor Weather Forecast
- 16
- 30
Mostly clear
- 17
- 30
Sunny
- 15
- 30
Sunny
- 15
- 29
Mostly sunny
- 17
- 30
Mostly sunny
- 16
- 25
Partly cloudy
- 14
- 27
Sunny
Today 21 Apr Flinders
Mostly clear. Winds northwest to northeasterly 15 to 20 km/h.
Spencer Gulf Coastal Waters
- Wind
- Northerly 15 to 20 knots.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres near the Yorke Peninsula coast.
- 1st Swell
- South to southwesterly below 1 metre, increasing to around 1 metre south of Cowell to Wallaroo.
- Weather
- Mostly clear.
- Weather Situation
- A strong high pressure system east of Tasmania will maintain a ridge over SA this week. A cold front is expected to weaken and slide across western and southern coasts on Wednesday. A second cold front may pass over the south again on Saturday with a high pressure system to follow over waters south of the Bight on Sunday.
Blanche Harbor Temperature Statistics View More
April Temperature
Port Augusta Airport (20km)
Lowest 16 April, 2026
8.7 °CAverage April
19.9 °CHighest 6 April, 2026
34.3 °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