July in Plitvicka Jezera is the sunniest and the warmest month of the year. In July, the weather in Plitvicka Jezera is typically warm. Average daily high temperature in July is about 26 degrees above zero. On average, Plitvicka Jezera has 13 sunny, 12 rainy, 5 partly cloudy, and 1 cloudy day in July. The rains are usually heavy.