July in Ulan-Ude is the warmest month of the year. In July, the weather in Ulan-Ude is typically warm. Average daily high temperature in July is about 23 degrees above zero. On average, Ulan-Ude has 13 partly cloudy, 11 sunny, 5 rainy, and 2 cloudy days in July. The rains are usually light. July as well as June is considered the most comfortable time to visit Ulan-Ude.