Gunnamatta Beach Weather Forecast
- 9
- 15
Cloudy
- 5
- 16
Partly cloudy
- 6
- 18
Sunny
- 10
- 23
Partly cloudy
- 14
- 24
Shower
- 11
- 17
Shower
- 9
- 20
Partly cloudy
Today 21 Sep Mornington Peninsula
Slight chance of a shower, most likely in the early morning. Mostly sunny afternoon. Winds westerly 25 to 35 km/h turning south to southwesterly 15 to 25 km/h during the morning and early afternoon.
Central Victoria Coastal Waters
Cape Otway to Wilsons Promontory- Wind
- Southwesterly 15 to 25 knots, reaching up to 30 knots during the morning. Winds decreasing to 10 to 15 knots in the evening.
- Seas
- 2 to 3 metres, decreasing to 1 to 1.5 metres around midday, then decreasing to 1 metre later in the evening.
- 1st Swell
- Southwesterly 2 to 3 metres, increasing to 3 to 4 metres in the far west during the morning.
- Weather
- Partly cloudy.
Gunnamatta Beach Temperature Statistics View More
September Temperature
Cerberus (28km)
Lowest 18 September, 2026
2.4 °CAverage September
13.3 °CHighest 13 September, 2026
25.6 °C
Climate (2021–2026)
Cerberus (28km)
Average Low 2021–2026
10.2 °CAverage 2021–2026
14.6 °CAverage High 2021–2026
19.7 °C