March in Naples is the windiest and the sunniest month of the year. In March, the weather in Naples is typically warm. Average daily high temperature in March is about 23 degrees above zero. On average, Naples has 25 sunny, 4 partly cloudy, and 2 rainy days in March. The rains are usually light. March as well as January, February, November, and December is considered the most comfortable time to visit Naples.