Gunnamatta Beach Weather Forecast
- 10
- 16
Shower
- 8
- 15
Shower
- 9
- 15
Shower
- 8
- 16
Cloudy
- 10
- 17
Shower
- 9
- 14
Shower
- 8
- 15
Shower
Today 20 Aug Mornington Peninsula
Partly cloudy. High chance of showers, most likely in the late afternoon and evening. Winds northwesterly 15 to 25 km/h becoming light in the early afternoon then becoming northwesterly 15 to 20 km/h in the evening.
Central Victoria Coastal Waters
Cape Otway to Wilsons Promontory- Wind
- Northwesterly 15 to 20 knots.
- Seas
- 1 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- Westerly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres in the west.
- Weather
- Partly cloudy. 90% chance of showers.
- Weather Situation
- A large high pressure system centred over the Tasman Sea is responsible for northerly winds across Victoria. A trough will move across the state today. A ridge of high pressure will become established over the north on Friday and over the weekend and a couple of weak troughs will pass to the south in a broad westerly flow.
Gunnamatta Beach Temperature Statistics View More
August Temperature
Cerberus (28km)
Lowest 2 August, 2026
2.3 °CAverage August
10.8 °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