March weather forecast in Castanhal

March in Castanhal is the rainiest and the cloudiest month of the year. In March, the weather in Castanhal is typically hot. Average daily high temperature in March is about 28 degrees above zero. On average, Castanhal has 31 rainy days in March. The rains are usually heavy. March as well as January, February, April, and May is considered the most uncomfortable time to visit Castanhal.