Portsea Surf Beach Weather Forecast
- 12
- 25
Shower
- 12
- 18
Shower
- 10
- 16
Shower
- 12
- 22
Shower
- 10
- 16
Shower
- 9
- 17
Cloudy
- 11
- 17
Shower
Today 19 Oct Mornington Peninsula
Cloudy. High chance of showers, most likely in the late afternoon and evening. Winds northerly 25 to 40 km/h shifting southwesterly 20 to 30 km/h in the evening.
Port Phillip Local Waters
- Wind
- North to northwesterly 15 to 25 knots, reaching up to 30 knots in the north in the late morning. Winds shifting southwesterly 15 to 20 knots in the evening.
- Seas
- 1 to 1.5 metres, decreasing to 1 metre during the afternoon.
- Weather
- Cloudy. 80% chance of showers.
- Weather Situation
- A trough over Victoria will continue to move eastwards overnight and clear to the east during Monday. A ridge of high pressure is expected to pass quickly over the state early Tuesday ahead of a strong low pressure system developing in the west. The low is forecast to move over Bass Strait on Wednesday with an associated front passing over the state. A new high pressure system is expected to move into the west later in the week.
Portsea Surf Beach Temperature Statistics View More
October Temperature
Avalon Airport (39km)
Lowest 13 October, 2025
3.1 °CAverage October
14.1 °CHighest 16 October, 2025
32.5 °C
Climate (2020–Present)
Avalon Airport (39km)
Average Low 2020–2025
9.7 °CAverage 2020–2025
14.5 °CAverage High 2020–2025
20.5 °C