Portland Bay Weather Forecast
- 16
- 43
Sunny. Midday cool change
- 16
- 22
Cloudy
- 15
- 22
Cloudy
- 15
- 27
Partly cloudy
- 15
- 23
Possible shower
- 14
- 20
Shower or two
- 13
- 19
Cloudy
Today 27 Jan South West
Mostly sunny day. Patchy smoke haze in the southeast. The chance of a thunderstorm with little or no rainfall in the north late this afternoon and evening. Winds northeasterly 15 to 25 km/h shifting west to southwesterly 30 to 45 km/h in the early afternoon then becoming southwesterly 20 to 30 km/h in the late evening. Daytime maximum temperatures in the low to mid 40s.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- East to northeasterly 15 to 20 knots, reaching up to 25 knots in the far east during the morning. Winds shifting southwesterly in the middle of the day.
- Seas
- 1 to 2 metres, decreasing to 1 to 1.5 metres around midday.
- 1st Swell
- Southwesterly 1.5 to 2 metres.
- Weather
- Mostly sunny. Smoke haze inshore in the east.
- Weather Situation
- A high pressure system is centred over the Tasman Sea and will remain slow moving today. A northerly airstream will develop over Victoria today ahead of a trough which is expected to move over western and central districts in the afternoon and evening, extending through remaining districts on Wednesday. A ridge of high pressure will move into the west on Wednesday and persist to the south of Victoria on Thursday and Friday as a trough lingers to the north.
Portland Bay Temperature Statistics View More
January Temperature
Portland Airport (25km)
Lowest 5 January, 2026
5.7 °CAverage January
16.8 °CHighest 24 January, 2026
39.3 °C
Climate (2021–Present)
Portland Airport (25km)
Average Low 2021–2026
9.7 °CAverage 2021–2026
13.4 °CAverage High 2021–2026
18.1 °C