Blanche Bay Weather Forecast

    • 6
    • 18

    Shower

    • 13
    • 18

    Storm

    • 10
    • 14

    Windy

    • 8
    • 16

    Partly cloudy

    • 7
    • 18

    Partly cloudy

    • 9
    • 19

    Cloudy

    • 10
    • 24

    Shower

Today 25 Oct Lower South East

Cloudy. Very high chance of showers. The chance of a thunderstorm during this afternoon and evening. Light winds becoming northeasterly 15 to 20 km/h in the middle of the day. Daytime maximum temperatures between 18 and 21.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Easterly about 10 knots increasing to 10 to 15 knots in the early morning. Winds reaching up to 20 knots south of Port MacDonnell during the afternoon and evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres offshore during the afternoon.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Cloudy. 80% chance of showers. The chance of a thunderstorm during this afternoon and evening.
Weather Situation
A low pressure system and associated troughs is moving over coastal waters today and into tomorrow. A high pressure system moves over waters to the south early next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Blanche Bay Temperature Statistics View More

October Temperature

Mount Gambier Airport (35km)

  • Lowest 13 October, 2025

    4.3 °C

  • Average October

    12.9 °C

  • Highest 16 October, 2025

    24.7 °C

Climate (2020–Present)

Mount Gambier Airport (35km)

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  • Average Low 2020–2025

    8.9 °C

  • Average 2020–2025

    13.7 °C

  • Average High 2020–2025

    20 °C
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