Gunnamatta Beach Weather Forecast
- 5
- 18
Partly cloudy
- 9
- 23
Partly cloudy
- 14
- 21
Shower
- 11
- 16
Shower
- 9
- 17
Partly cloudy
- 8
- 19
Partly cloudy
- 11
- 24
Shower
Today 23 Sep Mornington Peninsula
Mostly sunny. Light winds.
Central Victoria Coastal Waters
Cape Otway to Wilsons Promontory- Wind
- Easterly about 10 knots increasing to 10 to 15 knots in the middle of the day.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 1.5 to 2 metres, increasing to 2 to 3 metres in the west.
- Weather
- Sunny.
- Weather Situation
- A high pressure system near Bass Strait will move across the Tasman Sea during the rest of the week, directing a warm north to northeasterly airstream over Victoria. Another high pressure system moves in from the west from Saturday.
Gunnamatta Beach Temperature Statistics View More
September Temperature
Cerberus (28km)
Lowest 18 September, 2026
2.4 °CAverage September
13 °CHighest 20 September, 2026
26.2 °C
Climate (2021–2026)
Cerberus (28km)
Average Low 2021–2026
10.2 °CAverage 2021–2026
14.6 °CAverage High 2021–2026
19.7 °C