Descartes Bay Weather Forecast

    • 11
    • 18

    Mostly clear

    • 10
    • 19

    Partly cloudy

    • 10
    • 19

    Partly cloudy

    • 9
    • 26

    Mostly sunny

    • 12
    • 19

    Partly cloudy

    • 10
    • 18

    Shower or two. Becoming windy

    • 11
    • 17

    Cloudy

Today 9 Dec South West

Mostly clear. Winds southerly 15 to 20 km/h turning southeasterly in the late evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Variable about 10 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 3 metres inshore, increasing to 3 to 4 metres offshore.
Weather
Mostly clear.
Weather Situation
A ridge of high pressure extends across Victoria from the west this evening, persisting during Wednesday as the high centre moves eastwards across Tasmania on Thursday. A trough extends from NSW into the northeast of Victoria at times during Wednesday and Thursday, before a more significant trough is forecast to move across the far west on Friday then over the remainder of the state on Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Descartes Bay Temperature Statistics View More

December Temperature

Portland Airport (7km)

  • Lowest 5 December, 2025

    6.9 °C

  • Average December

    14.1 °C

  • Highest 4 December, 2025

    26.4 °C

Climate (2020–Present)

Portland Airport (7km)

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  • Average Low 2020–2025

    9.6 °C

  • Average 2020–2025

    13.4 °C

  • Average High 2020–2025

    18.1 °C
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