Portland Harbour Weather Forecast
- 8
- 15
Showers
- 6
- 17
Possible shower
- 9
- 15
Showers
- 6
- 12
Showers
- 4
- 14
Showers
- 7
- 14
Shower or two
- 7
- 14
Shower or two
Today 11 Jul South West
Partly cloudy. High chance of showers, becoming less likely late this afternoon and evening. Winds northwesterly 20 to 30 km/h tending westerly in the middle of the day then becoming light in the evening. Daytime maximum temperatures around 14.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- Westerly 15 to 25 knots, reaching up to 30 knots during the morning and early afternoon. Winds decreasing to 10 to 15 knots in the evening.
- Seas
- 2 to 3 metres, decreasing to 1 to 1.5 metres by early evening.
- 1st Swell
- Westerly 4 metres, tending southwesterly 4 metres around midday.
- Weather
- Partly cloudy. 80% chance of showers.
- Weather Situation
- A front is forecast to cross Victorian coastal waters during today before a high pressure system crosses NSW and extends a ridge over Bass Strait on Saturday. Northwesterly winds will freshen on Sunday ahead of a cold front that is forecast to enter the western Bass Strait during the afternoon before reaching eastern waters at night. Another cold front will approach from the west on Monday.
Portland Harbour Temperature Statistics View More
July Temperature
Cape Nelson Lighthouse (11km)
Lowest 3 July, 2025
5.7 °CAverage July
11 °CHighest 7 July, 2025
16.5 °C
Climate (2020–Present)
Cape Nelson Lighthouse (11km)
Average Low 2020–2025
11.8 °CAverage 2020–2025
14.3 °CAverage High 2020–2025
17.7 °C