July in Vaduz is the warmest month of the year. In July, the weather in Vaduz is typically warm. Average daily high temperature in July is about 21 degrees above zero. On average, Vaduz has 20 rainy, 7 sunny, and 4 partly cloudy days in July. The rains are usually heavy. July as well as January, February, March, and April is considered the most uncomfortable time to visit Vaduz.