Gunnamatta Beach Weather Forecast
- 7
- 14
Shower
- 6
- 15
Shower
- 8
- 15
Partly cloudy
- 8
- 16
Shower
- 9
- 15
Shower
- 7
- 14
Shower
- 7
- 15
Shower
Today 5 Aug Mornington Peninsula
Partly cloudy. High chance of showers, becoming less likely in the late afternoon and evening. Winds southwesterly 20 to 30 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 10 to 15 knots, reaching up to 20 knots in the west in the late morning and afternoon.
- Seas
- 1 to 1.5 metres.
- 1st Swell
- Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2 metres in the far west.
- Weather
- Partly cloudy. 60% chance of showers.
- Weather Situation
- A low pressure system and associated trough centred over the Tasman Sea will move away from the state as a high pressure system to the north extends a ridge over the west. The ridge will slowly move eastwards across the state through to the end of the week. A weak trough will clip parts of the south on Thursday. The high pressure system will move out over the Tasman Sea on Saturday ahead of a vigorous cold front expected to cross the state on Sunday.
Gunnamatta Beach Temperature Statistics View More
August Temperature
Cerberus (28km)
Lowest 2 August, 2026
2.3 °CAverage August
9.5 °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