February in Tehran is the cloudiest month of the year. In February, the weather in Tehran is typically cold. Average daily high temperature in February is about 5 degrees above zero. On average, Tehran has 13 sunny, 8 partly cloudy, 5 rainy, 2 cloudy, and 1 snowy day in February. The rains are usually light. February as well as January, March, November, and December is considered the most uncomfortable time to visit Tehran.