In March, the weather in Copacabana is typically warm. Average daily high temperature in March is about 12 degrees above zero. On average, Copacabana has 27 rainy, 2 cloudy, 1 sunny, and 1 partly cloudy day in March. The rains are usually heavy. March as well as January, February, April, and October is considered the most uncomfortable time to visit Copacabana.