Descartes Bay Weather Forecast

    • 10
    • 14

    Possible shower

    • 7
    • 15

    Showers. Windy

    • 10
    • 16

    Showers

    • 10
    • 15

    Showers easing

    • 10
    • 14

    Showers

    • 9
    • 16

    Showers

    • 11
    • 17

    Shower or two

Today 31 May South West

Partly cloudy. Medium chance of showers near the Otways, slight chance elsewhere. Winds westerly 20 to 30 km/h turning northwesterly 15 to 20 km/h in the evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southwesterly 15 to 25 knots turning westerly 15 to 20 knots in the evening.
Seas
1.5 to 2.5 metres, decreasing to 1 to 1.5 metres later in the evening.
1st Swell
Southwesterly 4 metres.
Weather
Cloudy. 50% chance of showers.
Weather Situation
A trough clearing into the Tasman Sea today will allow weak high pressure ridge to briefly develop over Victoria until a strong cold front approaches from the west on Monday. This cold front, associated with a vigorous low pressure system south of the Bight, will cross Victoria late Monday, into Tuesday. The low is expected to track through eastern Bass Strait on Tuesday and then over Tasmania Wednesday, bringing a series of troughs in the mid week before it clears into the Tasman Sea on Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Descartes Bay Temperature Statistics View More

May Temperature

Portland Airport (7km)

  • Lowest 22 May, 2026

    3.4 °C
  • Average May

    13.2 °C
  • Highest 1 May, 2026

    27.3 °C

Climate (2021–Present)

Portland Airport (7km)

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  • Average Low 2021–2026

    9.7 °C
  • Average 2021–2026

    13.5 °C
  • Average High 2021–2026

    18.1 °C
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