Portland Offshore Weather Forecast
- 13
- 20
Clear
- 12
- 21
Sunny
- 13
- 20
Cloudy
- 11
- 20
Partly cloudy
- 12
- 20
Partly cloudy
- 12
- 21
Partly cloudy
- 13
- 23
Partly cloudy
Today 17 Mar South West
Partly cloudy. Slight chance of a shower near the Otways in the early afternoon. Near zero chance of rain elsewhere. Winds southerly 15 to 20 km/h turning southeasterly in the evening. Daytime maximum temperatures in the low 20s.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- South to southwesterly about 10 knots becoming southeasterly in the late evening.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 2 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A broad low pressure trough over the state contracts into the northeast today as a ridge of high pressure begins to extend across the south in the evening. This ridge will persist over large parts of the state with a broad area of low pressure lingering about the northern border into Friday.
Portland Offshore Temperature Statistics View More
March Temperature
Cape Nelson Lighthouse (9km)
Lowest 10 March, 2026
11.3 °CAverage March
16.8 °CHighest 1 March, 2026
23.3 °C
Climate (2021–Present)
Cape Nelson Lighthouse (9km)
Average Low 2021–2026
11.8 °CAverage 2021–2026
14.3 °CAverage High 2021–2026
17.6 °C