January in Angra dos Reis is the rainiest and the cloudiest month of the year. In January, the weather in Angra dos Reis is typically warm. Average daily high temperature in January is about 27 degrees above zero. On average, Angra dos Reis has 28 rainy, 2 partly cloudy, and 1 sunny day in January. The rains are usually heavy. January as well as February, March, April, and October is considered the most uncomfortable time to visit Angra dos Reis.