Gunnamatta Beach Weather Forecast
- 10
- 15
Partly cloudy
- 7
- 15
Cloudy
- 9
- 17
Cloudy
- 10
- 15
Shower
- 9
- 15
Shower
- 8
- 16
Partly cloudy
- 8
- 16
Shower
Today 22 Aug Mornington Peninsula
Partly cloudy. Winds southwesterly 15 to 25 km/h tending westerly 15 to 20 km/h in the evening then becoming light in the late evening.
Central Victoria Coastal Waters
Cape Otway to Wilsons Promontory- Wind
- Southwesterly 15 to 20 knots, reaching up to 30 knots in the far east in the late afternoon. Winds turning westerly in the evening.
- Seas
- 1.5 to 2.5 metres, decreasing below 1.5 metres later in the evening.
- 1st Swell
- Southwesterly 2.5 to 3 metres, increasing to 4 to 5 metres in the far west.
- Weather
- Cloudy.
- Weather Situation
- A ridge of high pressure over northern parts of the State will remain throughout the weekend as a cold front passes well to the south in a broad westerly flow. The ridge will weaken and move over the Tasman Sea on Monday and a low pressure system and associated trough will approach from the west, moving quickly over the north of the State on Tuesday and out of the Tasman on Wednesday.
Gunnamatta Beach Temperature Statistics View More
August Temperature
Cerberus (28km)
Lowest 2 August, 2026
2.3 °CAverage August
10.9 °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