Fossil Beach Weather Forecast
- 11
- 21
Partly cloudy
- 12
- 20
Shower or two
- 12
- 20
Possible shower
- 11
- 18
Cloudy
- 11
- 19
Cloudy
- 10
- 27
Cloud clearing
- 13
- 32
Sunny
Today 22 Dec Mornington Peninsula
Partly cloudy. Slight chance of a shower later tonight. Winds southwesterly 15 to 20 km/h turning west to northwesterly in the late evening.
Port Phillip Local Waters
- Wind
- South to southwesterly 10 to 15 knots turning west to northwesterly below 10 knots in the late evening.
- Seas
- Below 1 metre.
- Weather
- Partly cloudy.
- Weather Situation
- A weak cold front will sweep through coastal fringes late this evening and early Tuesday. Behind this, a ridge of high pressure re-develops and persists across Victoria this week, with the high pressure centre expected to slowly move through Bass Strait from Friday.
Fossil Beach Temperature Statistics View More
December Temperature
Cerberus (18km)
Lowest 3 December, 2025
6 °CAverage December
16.4 °CHighest 18 December, 2025
35.8 °C
Climate (2020–Present)
Cerberus (18km)
Average Low 2020–2025
10.1 °CAverage 2020–2025
14.5 °CAverage High 2020–2025
19.5 °C