Gunnamatta Beach Weather Forecast
- 6
- 16
Clear
- 8
- 18
Shower
- 11
- 16
Shower
- 9
- 17
Shower
- 9
- 15
Shower
- 9
- 15
Shower
- 9
- 14
Cloudy
Today 17 Aug Mornington Peninsula
Clear. Light winds becoming easterly 15 to 20 km/h in the late evening.
Central Victoria Coastal Waters
Cape Otway to Wilsons Promontory- Wind
- Easterly 15 to 20 knots.
- Seas
- 1 to 1.5 metres.
- 1st Swell
- Southwesterly 1.5 metres, increasing to 1.5 to 2.5 metres in the west.
- Weather
- Clear.
- Weather Situation
- A high pressure system and associated ridge will move eastward over Tasman Sea later tonight. A low pressure trough will move across South Australia on Tuesday and early Wednesday then will slip to the south of Victoria during Wednesday. A weak high pressure ridge will move over the state on Thursday and Friday, as a series of cold fronts move across Tasmania.
Gunnamatta Beach Temperature Statistics View More
August Temperature
Cerberus (28km)
Lowest 2 August, 2026
2.3 °CAverage August
10.7 °CHighest 2 August, 2026
17.4 °C
Climate (2021–2026)
Cerberus (28km)
Average Low 2021–2026
10.2 °CAverage 2021–2026
14.6 °CAverage High 2021–2026
19.7 °C