Swan Island Weather Forecast
- 9
- 18
Cloudy
- 8
- 20
Partly cloudy
- 11
- 21
Partly cloudy
- 14
- 21
Shower
- 13
- 20
Shower
- 12
- 19
Shower
- 11
- 19
Shower
Today 13 May Central
Areas of thick morning fog. Mostly sunny afternoon. Light winds becoming northwest to northeasterly 15 to 20 km/h in the morning then becoming light in the early afternoon. Daytime maximum temperatures between 18 and 21.
Port Phillip Local Waters
- Wind
- Variable about 10 knots.
- Seas
- Below 1 metre.
- Weather
- Areas of thick morning fog with reduced visibility. Mostly sunny afternoon.
- Weather Situation
- A large high pressure system centred southeast of Tasmania extends a ridge up the east coast of Australia, which will persist for most of the week as the high moves slowly southeastwards. A cold front is expected to approach from the southwest late Friday then move across Victoria over the weekend.
Swan Island Temperature Statistics View More
May Temperature
Avalon Airport (30km)
Lowest 11 May, 2026
5.3 °CAverage May
14.2 °CHighest 1 May, 2026
29.3 °C
Climate (2021–Present)
Avalon Airport (30km)
Average Low 2021–2026
9.7 °CAverage 2021–2026
14.6 °CAverage High 2021–2026
20.6 °C