Western Sister Weather Forecast
- 11
- 18
Cloudy
- 12
- 19
Partly cloudy
- 13
- 24
Partly cloudy
- 14
- 20
Shower
- 11
- 20
Shower
- 12
- 16
Windy
- 11
- 17
Cloudy
Today 10 Dec Mornington Peninsula
Cloudy. Winds southeasterly 15 to 20 km/h becoming light in the morning then becoming south to southeasterly 15 to 20 km/h in the early afternoon.
Port Phillip Local Waters
- Wind
- South to southeasterly about 10 knots increasing to 10 to 15 knots in the late afternoon.
- Seas
- Below 1 metre.
- Weather
- Cloudy.
Western Sister Temperature Statistics View More
December Temperature
Cerberus (36km)
Lowest 3 December, 2025
6 °CAverage December
15.8 °CHighest 4 December, 2025
34 °C
Climate (2020–Present)
Cerberus (36km)
Average Low 2020–2025
10.1 °CAverage 2020–2025
14.5 °CAverage High 2020–2025
19.5 °C