Swan Island Weather Forecast
- 11
- 16
Windy
- 9
- 16
Shower
- 8
- 15
Cloudy
- 8
- 15
Shower
- 7
- 16
Partly cloudy
- 9
- 17
Shower
- 10
- 15
Shower
Today 19 Aug Central
Cloudy. Very high chance of showers, most likely in the morning and afternoon. Damaging winds possible. Winds north to northeasterly 25 to 40 km/h increasing to 45 km/h before tending north to northwesterly 15 to 20 km/h during the day. Overnight temperatures falling to between 8 and 11 with daytime temperatures reaching between 11 and 17.
Port Phillip Local Waters
- Wind
- North to northeasterly 15 to 25 knots becoming northerly 20 to 30 knots in the early morning then decreasing to 15 to 25 knots in the early afternoon. Winds reaching up to 35 knots in the south during the morning.
- Seas
- Below 1 metre, increasing to 1.5 to 2.5 metres during the morning, then decreasing to 1 to 1.5 metres by early evening.
- Weather
- Cloudy. 90% chance of showers.
Swan Island Temperature Statistics View More
August Temperature
Avalon Airport (30km)
Lowest 1 August, 2026
-0.7 °CAverage August
10.2 °CHighest 2 August, 2026
18.5 °C
Climate (2021–2026)
Avalon Airport (30km)
Average Low 2021–2026
9.8 °CAverage 2021–2026
14.6 °CAverage High 2021–2026
20.6 °C