Blanche Bay Weather Forecast

    • 5
    • 15

    Shower

    • 3
    • 16

    Shower

    • 9
    • 15

    Shower

    • 9
    • 14

    Rain

    • 9
    • 14

    Shower

    • 8
    • 15

    Shower

    • 8
    • 13

    Windy

Today 6 Aug Lower South East

Partly cloudy. Medium chance of showers, most likely in the afternoon and evening. Winds northwesterly 15 to 20 km/h tending northwest to southwesterly in the early afternoon then becoming light in the late afternoon. Daytime maximum temperatures around 16.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Northwest to southwesterly 10 to 15 knots, reaching up to 20 knots south of Port MacDonnell in the late morning. Winds tending southwesterly in the middle of the day then becoming variable below 10 knots in the evening.
Seas
Around 1 metre, decreasing below 0.5 metres later in the evening.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A trough continues moving across southeast coastal parts of SA Thursday morning. A weak high pressure system centred over western NSW will slowly move east while maintaining a ridge over SA until the weekend. A strong cold front will begin to move into the Bight and track east over the state from Saturday into Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Blanche Bay Temperature Statistics View More

August Temperature

Mount Gambier Airport (35km)

  • Lowest 1 August, 2026

    0.3 °C

  • Average August

    8.8 °C

  • Highest 2 August, 2026

    15.7 °C

Climate (2021–2026)

Mount Gambier Airport (35km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    20.1 °C
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