Swan Island Weather Forecast
- 12
- 20
Shower
- 11
- 20
Shower
- 11
- 17
Shower
- 11
- 17
Cloudy
- 11
- 21
Sunny
- 12
- 27
Sunny
- 14
- 31
Partly cloudy
Today 23 Dec Central
Partly cloudy. High chance of showers in the southeast, medium chance elsewhere. Winds west to northwesterly 15 to 20 km/h tending west to southwesterly 20 to 30 km/h early in the morning. Overnight temperatures falling to between 8 and 12 with daytime temperatures reaching between 18 and 21.
Port Phillip Local Waters
- Wind
- Northwest to southwesterly 15 to 20 knots tending southwesterly in the morning then tending westerly in the late evening.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing to 1 metre around midday.
- Weather
- Partly cloudy.
Swan Island Temperature Statistics View More
December Temperature
Avalon Airport (30km)
Lowest 7 December, 2025
6.6 °CAverage December
17.1 °CHighest 18 December, 2025
39.5 °C
Climate (2020–Present)
Avalon Airport (30km)
Average Low 2020–2025
9.6 °CAverage 2020–2025
14.5 °CAverage High 2020–2025
20.4 °C