Descartes Bay Weather Forecast

    • 6
    • 19

    Mostly sunny

    • 8
    • 18

    Shower or two

    • 11
    • 17

    Showers

    • 9
    • 16

    Shower or two

    • 7
    • 15

    Shower or two

    • 10
    • 15

    Shower or two

    • 7
    • 15

    Possible shower

Today 17 Aug South West

Patchy morning fog. Mostly sunny afternoon. Light winds becoming east to northeasterly 15 to 20 km/h in the morning. Overnight temperatures falling to around 4 with daytime temperatures reaching between 16 and 19.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Easterly 10 to 15 knots, reaching up to 20 knots offshore in the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres in the far east during the afternoon.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Sunny.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Descartes Bay Temperature Statistics View More

August Temperature

Portland Airport (7km)

  • Lowest 2 August, 2026

    2.2 °C

  • Average August

    10.2 °C

  • Highest 8 August, 2026

    16.4 °C

Climate (2021–2026)

Portland Airport (7km)

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  • Average Low 2021–2026

    9.7 °C

  • Average 2021–2026

    13.5 °C

  • Average High 2021–2026

    18.2 °C
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