September weather Autumn 2023 Raleigh NCIn Raleigh, the climate fluctuates significantly, with mild to hot weather experienced all year. Depending on the season, you can experience pleasant seasons, chilly autumns, freezing winters, and mild seasons. On average, the annual mean climate of Raleigh is around XX degrees Fahrenheit and XX degrees Celsius. Make sure to keep an eye on the temperatures prior to any open-air activities in order to dress appropriately and enjoy your time around Raleigh.