In November, the weather in St Catharines is typically cold. Average daily high temperature in November is about 8 degrees above zero. On average, St Catharines has 11 rainy, 8 partly cloudy, 6 cloudy, and 5 sunny days in November. The rains are usually moderate. November as well as March, April, October, and December is considered the most uncomfortable time to visit St Catharines.