Sullivan Bay Weather Forecast
- 9
- 15
Partly cloudy
- 8
- 20
Partly cloudy
- 13
- 21
Sunny
- 13
- 23
Windy
- 10
- 14
Cloudy
- 8
- 15
Partly cloudy
- 8
- 18
Partly cloudy
Today 17 Sep Mornington Peninsula
Partly cloudy. Winds westerly 15 to 20 km/h becoming light in the evening.
Port Phillip Local Waters
- Wind
- West to southwesterly about 10 knots.
- Seas
- Below 0.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A strong high pressure system centred over western Victoria will move slowly over NSW before a cold front crosses the State on Sunday. A new high pressure system will approach the State following the cold front.
Sullivan Bay Temperature Statistics View More
September Temperature
Cerberus (36km)
Lowest 8 September, 2026
3.3 °CAverage September
12.7 °CHighest 13 September, 2026
25.6 °C
Climate (2021–2026)
Cerberus (36km)
Average Low 2021–2026
10.2 °CAverage 2021–2026
14.6 °CAverage High 2021–2026
19.7 °C