Portland Offshore Weather Forecast
- 11
- 18
Shower or two
- 10
- 23
Showers increasing
- 11
- 15
Shower or two
- 9
- 14
Shower or two
- 8
- 13
Cloudy
- 7
- 15
Partly cloudy
- 9
- 18
Partly cloudy
Today 10 Oct South West
Partly cloudy. Medium chance of showers. Winds northwesterly 25 to 35 km/h decreasing to 15 to 20 km/h in the evening then becoming west to northwesterly and light in the late evening. Overnight temperatures falling to around 10 with daytime temperatures reaching around 19.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- West to northwesterly 15 to 25 knots, reaching up to 30 knots during the day. Winds decreasing to 10 to 15 knots in the late evening.
- Seas
- 1.5 to 2.5 metres.
- 1st Swell
- Southwesterly 2.5 to 3 metres, increasing to 3 to 4 metres in the far west around midday.
- Weather
- Partly cloudy. 50% chance of showers.
Portland Offshore Temperature Statistics View More
October Temperature
Cape Nelson Lighthouse (9 km)
Lowest 5 October, 2026
7.8 °CAverage October
13.8 °CHighest 8 October, 2026
25.1 °C
Climate (2021–2026)
Cape Nelson Lighthouse (9 km)
Average Low 2021–2026
11.9 °CAverage 2021–2026
14.4 °CAverage High 2021–2026
17.6 °C