Descartes Bay Weather Forecast
- 12
- 18
Cloudy
- 11
- 17
Cloudy
- 10
- 18
Cloudy
- 11
- 20
Cloudy
- 10
- 28
Sunny
- 14
- 32
Sunny
- 17
- 28
Becoming cloudy
Today 24 Dec South West
Cloudy. Slight chance of a shower in the south, becoming less likely in the afternoon. Near zero chance of rain elsewhere. Winds west to southwesterly 25 to 35 km/h tending south to southwesterly 20 to 30 km/h during the afternoon and evening. Daytime maximum temperatures between 18 and 21.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- Southwesterly 20 to 25 knots, reaching up to 30 knots in the far east during the day.
- Seas
- 1.5 to 2 metres.
- 1st Swell
- Southwesterly 4 to 5 metres.
- Weather
- Cloudy.
- Weather Situation
- A ridge of high pressure will slowly develop from the west with the high pressure centre moving south of the state on Friday. The high will begin to weaken and move over Tasmania on Saturday but will maintain a broad ridge over the state.
Descartes Bay Temperature Statistics View More
December Temperature
Portland Airport (7km)
Lowest 5 December, 2025
6.9 °CAverage December
14.9 °CHighest 18 December, 2025
34.4 °C
Climate (2020–Present)
Portland Airport (7km)
Average Low 2020–2025
9.6 °CAverage 2020–2025
13.4 °CAverage High 2020–2025
18.1 °C