In September, the weather in Tlaxcala de Xicoténcatl is typically warm. Average daily high temperature in September is about 21 degrees above zero. On average, Tlaxcala de Xicoténcatl has 19 rainy, 7 partly cloudy, 2 sunny, and 2 cloudy days in September. The rains are usually heavy. September as well as June, July, and August is considered the most uncomfortable time to visit Tlaxcala de Xicoténcatl.