January in Port Coquitlam is the snowiest and the cloudiest month of the year. In January, the weather in Port Coquitlam is typically cold. Average daily high temperature in January is about 2 degrees above zero. On average, Port Coquitlam has 11 rainy, 11 cloudy, 5 partly cloudy, 2 snowy, and 2 sunny days in January. The rains are usually heavy. January as well as February, March, April, and May is considered the most uncomfortable time to visit Port Coquitlam.