In October, the weather in Copacabana is typically warm. Average daily high temperature in October is about 12 degrees above zero. On average, Copacabana has 14 rainy, 8 sunny, 8 partly cloudy, and 1 cloudy day in October. The rains are usually moderate. October as well as January, February, March, and April is considered the most uncomfortable time to visit Copacabana.