Swan Island Weather Forecast
- 14
- 17
Shower
- 10
- 15
Shower
- 9
- 14
Shower
- 8
- 14
Shower
- 6
- 14
Partly cloudy
- 7
- 13
Shower
- 8
- 14
Shower
Today 18 Jun Central
Cloudy. Very high chance of rain in the west, high chance elsewhere. The chance of a thunderstorm in the west during this afternoon and evening. Winds northerly 25 to 40 km/h. Daytime maximum temperatures between 13 and 18.
Port Phillip Local Waters
- Wind
- Northerly 15 to 25 knots, reaching up to 30 knots during the day. Winds turning northwesterly 15 to 20 knots in the evening.
- Seas
- 1 to 2 metres, decreasing to 1 metre later in the evening.
- Weather
- Cloudy. 80% chance of showers.
- Weather Situation
- A low pressure system over the Bight will continue to drive a northerly airstream over Victoria ahead of an approaching cold front in eastern SA. This front will cross Victoria on Thursday with the associated low moving south of Tasmania. A second weaker front will skim the south late Friday into Saturday morning before a high pressure system over SA extends a ridge into Victoria on the weekend.
Swan Island Temperature Statistics View More
June Temperature
Avalon Airport (30km)
Lowest 15 June, 2026
1.3 °CAverage June
12.6 °CHighest 12 June, 2026
20 °C
Climate (2021–2026)
Avalon Airport (30km)
Average Low 2021–2026
9.7 °CAverage 2021–2026
14.6 °CAverage High 2021–2026
20.6 °C