February in Gangtok is the windiest and the sunniest month of the year. In February, the weather in Gangtok is typically cold. Average daily high temperature in February is about 8 degrees above zero. On average, Gangtok has 25 rainy, 2 cloudy, 1 sunny, and 1 partly cloudy day in February. The rains are usually heavy. February as well as January, March, April, and May is considered the most uncomfortable time to visit Gangtok.