Gunnamatta Beach Weather Forecast
- 10
- 19
Partly cloudy
- 11
- 20
Partly cloudy
- 12
- 26
Partly cloudy
- 14
- 20
Shower
- 11
- 20
Shower
- 11
- 17
Cloudy
- 10
- 18
Cloudy
Today 10 Dec Mornington Peninsula
Partly cloudy. Light winds becoming southerly 15 to 20 km/h in the early afternoon then tending southeasterly in the late evening.
Central Victoria Coastal Waters
Cape Otway to Wilsons Promontory- Wind
- Variable about 10 knots becoming south to southwesterly 10 to 15 knots in the late afternoon then tending south to southeasterly in the late evening.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 1.5 to 2 metres, increasing to 2 to 3 metres in the west.
- Weather
- Partly cloudy.
- Weather Situation
- A ridge of high pressure extends across Victoria during Wednesday as the high centre moves eastwards across Tasmania on Thursday. A trough extends from NSW into the northeast of Victoria at times during Wednesday and Thursday, before a more significant trough is forecast to move across the far west on Friday then over the remainder of the state on Saturday.
Gunnamatta Beach Temperature Statistics View More
December Temperature
Cerberus (28km)
Lowest 3 December, 2025
6 °CAverage December
15.8 °CHighest 4 December, 2025
34 °C
Climate (2020–Present)
Cerberus (28km)
Average Low 2020–2025
10.1 °CAverage 2020–2025
14.5 °CAverage High 2020–2025
19.5 °C