January in Aracatuba is the rainiest and the cloudiest month of the year. In January, the weather in Aracatuba is typically hot. Average daily high temperature in January is about 28 degrees above zero. On average, Aracatuba has 28 rainy and 3 sunny days in January. The rains are usually heavy. January as well as February, March, November, and December is considered the most uncomfortable time to visit Aracatuba.