April in Narva is the rainiest month of the year. In April, the weather in Narva is typically cold. Average daily high temperature in April is about 6 degrees above zero. On average, Narva has 24 rainy, 4 cloudy, and 2 sunny days in April. The rains are usually moderate. April as well as January, February, May, and September is considered the most uncomfortable time to visit Narva.