Round Island Weather Forecast
- 12
- 23
Sunny
- 15
- 35
Sunny
- 17
- 25
Partly cloudy
- 16
- 30
Shower or two. Possible storm
- 14
- 20
Shower or two. Becoming windy
- 12
- 17
Cloudy
- 11
- 19
Cloudy
Today 6 Jan Central
Sunny. Light winds becoming southeast to southwesterly 15 to 25 km/h in the early afternoon then tending east to southeasterly 15 to 20 km/h in the evening. Daytime maximum temperatures 27 to 33.
Western Port Local Waters
- Wind
- South to southeasterly below 10 knots.
- Seas
- Below 0.5 metres.
- Weather
- Sunny.
- Weather Situation
- A high pressure system over western Bass Strait crosses the state on Tuesday. This high will establish in Tasman Sea through the midweek with new trough moving into western Victoria on Wednesday. This trough will remain stationary over the central and western districts with a cooler west to southwesterly airstream and a ridge in the west establishing on Friday.
Round Island Temperature Statistics View More
January Temperature
Cerberus (18km)
Lowest 2 January, 2026
8.5 °CAverage January
17.3 °CHighest 3 January, 2026
29.6 °C
Climate (2021–Present)
Cerberus (18km)
Average Low 2021–2026
10.1 °CAverage 2021–2026
14.5 °CAverage High 2021–2026
19.5 °C