Blanche Bay Weather Forecast

    • 16
    • 21

    Fog

    • 15
    • 22

    Cloudy

    • 15
    • 27

    Cloudy

    • 16
    • 22

    Shower

    • 14
    • 19

    Windy

    • 13
    • 19

    Partly cloudy

    • 10
    • 25

    Partly cloudy

Today 28 Jan Lower South East

Partly cloudy. The chance of fog in the south early this morning. Winds southerly 15 to 25 km/h increasing to 25 to 35 km/h in the middle of the day then tending southeasterly 20 to 30 km/h in the evening. Daytime maximum temperatures 23 to 32.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southerly 15 to 20 knots turning southeasterly in the late afternoon. Winds reaching up to 25 knots north of Beachport in the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres by early evening.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Cloudy. The chance of fog south of Port MacDonnell early this morning with reduced visibility.
Weather Situation
A trough over western and central parts of the SA continues to move across the south before contracting and lingering inland. A high pressure system moves over waters south of the Bight on Wednesday, reaching the Tasman Sea on Thursday. Another high pressure system building over over waters well south of SA extends a south to southeasterly flow over southern SA late Saturday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Blanche Bay Temperature Statistics View More

January Temperature

Mount Gambier Airport (35km)

  • Lowest 1 January, 2026

    6.9 °C

  • Average January

    19.3 °C

  • Highest 24 January, 2026

    42.6 °C

Climate (2021–Present)

Mount Gambier Airport (35km)

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  • Average Low 2021–2026

    8.8 °C

  • Average 2021–2026

    13.6 °C

  • Average High 2021–2026

    20 °C
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