Blanche Harbor Weather Forecast

    • 8
    • 18

    Possible shower

    • 13
    • 20

    Showers. Windy

    • 14
    • 20

    Showers

    • 11
    • 19

    Shower or two

    • 10
    • 18

    Shower or two

    • 9
    • 19

    Possible shower

    • 10
    • 19

    Mostly sunny

Today 31 May Flinders

Partly cloudy. The chance of morning fog. Medium chance of showers, most likely at night. Winds west to southwesterly 15 to 20 km/h becoming light in the early morning then becoming northwest to northeasterly 15 to 25 km/h in the evening. Overnight temperatures falling to between 4 and 7 with daytime temperatures reaching between 13 and 17.

Spencer Gulf Coastal Waters

Wind
West to southwesterly 15 to 20 knots shifting north to northeasterly 10 to 15 knots in the middle of the day then becoming northerly 15 to 25 knots in the evening.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning.
1st Swell
South to southwesterly around 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1 to 2 metres later in the evening.
Weather
Partly cloudy. 60% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Blanche Harbor Temperature Statistics View More

May Temperature

Port Augusta Airport (20km)

  • Lowest 11 May, 2026

    6.5 °C

  • Average May

    15.5 °C

  • Highest 1 May, 2026

    31.1 °C

Climate (2021–Present)

Port Augusta Airport (20km)

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  • Average Low 2021–2026

    12.5 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    26.2 °C
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