Swan Island Weather Forecast
- 15
- 21
Windy
- 14
- 19
Windy
- 12
- 23
Sunny
- 14
- 39
Sunny
- 19
- 24
Partly cloudy
- 14
- 28
Partly cloudy
- 16
- 33
Partly cloudy
Today 21 Jan Central
Partly cloudy. Medium chance of showers. Winds southerly 25 to 35 km/h.
Port Phillip Local Waters
- Wind
- Southerly 25 to 30 knots.
- Seas
- 1 to 1.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system over waters south of the Bight extends a ridge over western Victoria, extending more broadly over the state on Thursday, before progressing eastwards to be over the Tasman Sea by Friday. A trough of low pressure enters from the west late Saturday, forecast to move across the state into early Sunday. A new high pressure centre is expected to lie to the southwest of the state on Sunday, directing a south to southeasterly airstream over Victoria.
Swan Island Temperature Statistics View More
January Temperature
Avalon Airport (30km)
Lowest 5 January, 2026
9.8 °CAverage January
19.8 °CHighest 9 January, 2026
44.2 °C
Climate (2021–Present)
Avalon Airport (30km)
Average Low 2021–2026
9.7 °CAverage 2021–2026
14.5 °CAverage High 2021–2026
20.5 °C