Swan Island Weather Forecast
- 16
- 28
Windy
- 12
- 18
Shower
- 13
- 19
Cloudy
- 12
- 22
Partly cloudy
- 14
- 22
Shower
- 14
- 21
Shower
- 14
- 22
Partly cloudy
Today 11 Mar Central
Partly cloudy. High chance of showers, most likely in the afternoon. The chance of a thunderstorm in the south in the evening, possibly severe with damaging winds. Damaging winds possible near the Otways. Winds northwest to northeasterly 30 to 45 km/h tending west to northwesterly 25 to 35 km/h in the middle of the day then tending west to southwesterly 30 to 45 km/h in the late afternoon. Daytime maximum temperatures around 30.
Port Phillip Local Waters
- Wind
- North to northeasterly 15 to 25 knots tending northwest to southwesterly 20 to 30 knots in the morning then becoming southwesterly 20 to 25 knots in the late evening. Squalls above 40 knots possible.
- Seas
- Below 1 metre, increasing to 1 to 2 metres during the morning.
- Weather
- Cloudy. 70% chance of showers. The chance of a thunderstorm in the evening.
- Weather Situation
- A high pressure system over the Tasman Sea is directing a northeasterly airstream across Victorian coastal waters as a low pressure trough crosses the Bight. The trough is forecast to enter western Bass Strait on Wednesday morning, reaching central waters during the afternoon before crossing eastern Bass Strait by the evening. A ridge of high pressure will extend over southern Victoria late on Wednesday and persist throughout Thursday and Friday as a large high pressure system crosses waters south of the Bight.
Swan Island Temperature Statistics View More
March Temperature
Avalon Airport (30km)
Lowest 6 March, 2026
11.9 °CAverage March
19 °CHighest 1 March, 2026
30.2 °C
Climate (2021–Present)
Avalon Airport (30km)
Average Low 2021–2026
9.7 °CAverage 2021–2026
14.6 °CAverage High 2021–2026
20.5 °C