September in Tula de Allende is the cloudiest month of the year. In September, the weather in Tula de Allende is typically warm. Average daily high temperature in September is about 18 degrees above zero. On average, Tula de Allende has 27 rainy, 2 cloudy, and 1 sunny day in September. The rains are usually heavy. September as well as June, July, August, and October is considered the most uncomfortable time to visit Tula de Allende.