In March, the weather in Kanata is typically cold. Average daily high temperature in March is about 3 degrees above zero. On average, Kanata has 10 partly cloudy, 7 sunny, 7 cloudy, 4 snowy, and 3 rainy days in March. The snowfalls are usually heavy. March as well as April, October, November, and December is considered the most uncomfortable time to visit Kanata.