July in Florianopolis is the coldest month of the year. In July, the weather in Florianopolis is typically warm. Average daily high temperature in July is about 19 degrees above zero. On average, Florianopolis has 13 sunny, 13 partly cloudy, and 5 rainy days in July. The rains are usually heavy. July as well as April, May, and June is considered the most comfortable time to visit Florianopolis.