May in Narvik is the rainiest and the cloudiest month of the year. In May, the weather in Narvik is typically cold. Average daily high temperature in May is about 4 degrees above zero. On average, Narvik has 22 rainy, 5 cloudy, 3 sunny, and 1 partly cloudy day in May. The rains are usually moderate. May as well as June, July, August, and September is considered the most uncomfortable time to visit Narvik.