Cape Duquesne Weather Forecast
- 12
- 19
Partly cloudy
- 12
- 17
Possible shower. Windy
- 10
- 17
Cloudy
- 9
- 19
Partly cloudy
- 9
- 30
Sunny
- 14
- 29
Sunny
- 14
- 24
Possible shower
Today 13 Dec South West
Mostly sunny. Slight chance of a shower about the ranges, becoming less likely in the late afternoon and evening. Near zero chance of rain elsewhere. The chance of a thunderstorm in the afternoon and early evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding about the ranges. Light winds becoming southwesterly 15 to 25 km/h in the early afternoon then becoming light in the late evening. Daytime maximum temperatures 21 to 30.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- Southerly about 10 knots tending southwesterly 10 to 15 knots in the early afternoon then tending westerly 15 to 20 knots in the evening. Winds reaching up to 25 knots in the far west in the late evening.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 2 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system lies over the Tasman Sea and extends a broad ridge over eastern Bass Strait. A low pressure trough extends across the SA border into western Victoria and Bass Strait. The trough is expected to slowly move east over Victoria and Bass Strait during Saturday, entering from the west in the early morning and moving into eastern Coastal waters by the evening. The next cold front will cross Bass Strait during Sunday with a new high pressure ridge developing in its wake on Monday.
Cape Duquesne Temperature Statistics View More
December Temperature
Portland Airport (11km)
Lowest 5 December, 2025
6.9 °CAverage December
14.2 °CHighest 4 December, 2025
26.4 °C
Climate (2020–Present)
Portland Airport (11km)
Average Low 2020–2025
9.6 °CAverage 2020–2025
13.4 °CAverage High 2020–2025
18.1 °C