March in Dadonghai is the sunniest month of the year. In March, the weather in Dadonghai is typically warm. Average daily high temperature in March is about 26 degrees above zero. On average, Dadonghai has 15 partly cloudy, 13 sunny, 2 rainy, and 1 cloudy day in March. The rains are usually moderate. March as well as January, February, and December is considered the most comfortable time to visit Dadonghai.