March weather forecast in Hilo

March in Hilo is the rainiest and the coldest month of the year. In March, the weather in Hilo is typically warm. Average daily high temperature in March is about 20 degrees above zero. On average, Hilo has 12 rainy, 9 partly cloudy, 6 sunny, and 4 cloudy days in March. The rains are usually moderate. March as well as November is considered the most uncomfortable time to visit Hilo.