July weather forecast in Jena

July in Jena is the rainiest month of the year. In July, the weather in Jena is typically hot. Average daily high temperature in July is about 33 degrees above zero. On average, Jena has 15 rainy, 9 sunny, 5 partly cloudy, and 2 cloudy days in July. The rains are usually heavy. July as well as June and August is considered the most uncomfortable time to visit Jena.