In June, the weather in Isafjordur is typically cold. Average daily high temperature in June is about 8 degrees above zero. On average, Isafjordur has 15 rainy, 9 cloudy, 4 sunny, and 2 partly cloudy days in June. The rains are usually moderate. June as well as January, April, May, and July is considered the most uncomfortable time to visit Isafjordur.