Blanche Harbor Weather Forecast

    • 10
    • 27

    Clear

    • 13
    • 25

    Mostly sunny

    • 11
    • 19

    Partly cloudy

    • 9
    • 21

    Cloudy

    • 11
    • 19

    Partly cloudy

    • 9
    • 18

    Mostly sunny

    • 9
    • 21

    Sunny

Today 18 Sep Flinders

Mostly clear. The chance of a thunderstorm north of Hawker in the late afternoon and evening. Winds north to northeasterly 15 to 25 km/h.

Spencer Gulf Coastal Waters

Wind
Northwest to northeasterly 10 to 15 knots tending west to southwesterly in the evening.
Seas
Around 1 metre.
1st Swell
South to southwesterly around 1 metre south of Cowell to Wallaroo.
Weather
Clear.
Weather Situation
A high pressure system lies over the Tasman Sea with a ridge extending into the east of the state. A weak trough over South Australian waters will continue moving through eastern waters tonight. A cold front will pass over the south during Friday afternoon with a southwesterly flow persisting through the weekend as a ridge of high pressure extends over northern parts of the state.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Blanche Harbor Temperature Statistics View More

September Temperature

Port Augusta Airport (20km)

  • Lowest 17 September, 2025

    7.4 °C

  • Average September

    15.6 °C

  • Highest 15 September, 2025

    30.7 °C

Climate (2020–Present)

Port Augusta Airport (20km)

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  • Average Low 2020–2025

    12.4 °C

  • Average 2020–2025

    18.8 °C

  • Average High 2020–2025

    26.2 °C
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