In September, the weather in Dunfermline is typically warm. Average daily high temperature in September is about 14 degrees above zero. On average, Dunfermline has 16 rainy, 9 cloudy, 4 sunny, and 1 partly cloudy day in September. The rains are usually light. September as well as January, February, April, and May is considered the most uncomfortable time to visit Dunfermline.