Sierra Nevada Rocks Weather Forecast
- 17
- 20
Storm
- 16
- 21
Windy
- 16
- 22
Windy
- 16
- 24
Windy
- 17
- 25
Partly cloudy
- 18
- 24
Partly cloudy
- 17
- 23
Sunny
Today 15 Jan Mornington Peninsula
Cloudy. High chance of showers, most likely late this afternoon and evening. The chance of a thunderstorm. Winds southeasterly 35 to 50 km/h.
Port Phillip Local Waters
- Wind
- Southeasterly 10 to 15 knots turning south to southwesterly 15 to 25 knots during the morning then tending south to southeasterly 20 to 25 knots in the late afternoon. Winds reaching up to 30 knots in the evening.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
- Weather
- Cloudy. 60% chance of showers. The chance of a thunderstorm.
- Weather Situation
- A low pressure trough over eastern districts will continue to develop, forming a low pressure system to the north of the state by Thursday. This low will remain over southern NSW until it moves northward on the weekend, reducing its influence over Victorian waters. A high pressure system will also drift south of Tasmania over the coming days and will extend a ridge across the state on the weekend once the low shifts northwards.
Sierra Nevada Rocks Temperature Statistics View More
January Temperature
Avalon Airport (38km)
Lowest 5 January, 2026
9.8 °CAverage January
19.4 °CHighest 9 January, 2026
44.2 °C
Climate (2021–Present)
Avalon Airport (38km)
Average Low 2021–2026
9.6 °CAverage 2021–2026
14.5 °CAverage High 2021–2026
20.4 °C