April in Nizhnevartovsk is the windiest month of the year. In April, the weather in Nizhnevartovsk is typically cold. Average daily high temperature in April is about 2 degrees above zero. On average, Nizhnevartovsk has 16 rainy, 7 cloudy, 6 snowy, and 1 sunny day in April. The rains are usually moderate. April as well as January, February, May, and September is considered the most uncomfortable time to visit Nizhnevartovsk.