January in Port Alberni is the cloudiest month of the year. In January, the weather in Port Alberni is typically cold. Average daily high temperature in January is about 4 degrees above zero. On average, Port Alberni has 15 rainy, 12 cloudy, 3 partly cloudy, and 1 sunny day in January. The rains are usually heavy. January as well as February, March, April, and October is considered the most uncomfortable time to visit Port Alberni.