Portarlington Weather Forecast
- 8
- 18
Mostly sunny
- 9
- 28
Shower or two. Windy
- 11
- 19
Shower or two
- 9
- 19
Showers increasing
- 11
- 19
Showers
- 9
- 16
Cloudy
- 7
- 17
Cloudy
Today 18 Oct Geelong and Surf Coast
Slight chance of a shower in the morning. Mostly sunny afternoon. Winds west to southwesterly 15 to 20 km/h shifting east to southeasterly in the early afternoon then becoming light in the evening.
Port Phillip Local Waters
- Wind
- West to southwesterly 10 to 15 knots shifting east to southeasterly in the middle of the day then becoming variable below 10 knots in the evening.
- Seas
- Below 1 metre.
- Weather
- Mostly sunny.
- Weather Situation
- A high pressure system south of the Bight extends a ridge over western Victoria. The high will move eastwards across Victoria today to be over the Tasman Sea late evening. A trough will follow over the state Sunday and Monday. Another high pressure system is forecast to pass over the state on Tuesday.
Portarlington Temperature Statistics View More
October Temperature
Avalon Airport (17km)
Lowest 13 October, 2025
3.1 °CAverage October
14.2 °CHighest 16 October, 2025
32.5 °C
Climate (2020–Present)
Avalon Airport (17km)
Average Low 2020–2025
9.7 °CAverage 2020–2025
14.5 °CAverage High 2020–2025
20.5 °C