July in Flims is the warmest month of the year. In July, the weather in Flims is typically warm. Average daily high temperature in July is about 18 degrees above zero. On average, Flims has 23 rainy, 4 sunny, 3 partly cloudy, and 1 cloudy day in July. The rains are usually heavy. July as well as March, April, May, and June is considered the most uncomfortable time to visit Flims.