In January, the weather in Tibau do Sul is typically hot. Average daily high temperature in January is about 29 degrees above zero. On average, Tibau do Sul has 20 rainy, 5 sunny, 5 partly cloudy, and 1 cloudy day in January. The rains are usually moderate. January as well as February, March, April, and May is considered the most uncomfortable time to visit Tibau do Sul.