February in Porto Velho is the cloudiest and the coldest month of the year. In February, the weather in Porto Velho is typically hot. Average daily high temperature in February is about 29 degrees above zero. On average, Porto Velho has 27 rainy, 1 cloudy, and 1 partly cloudy day in February. The rains are usually heavy. February as well as January, March, April, and May is considered the most uncomfortable time to visit Porto Velho.