October in Belém is the windiest month of the year. In October, the weather in Belém is typically hot. Average daily high temperature in October is about 32 degrees above zero. On average, Belém has 25 rainy, 3 sunny, 2 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 Belém.