November in Otaru is the rainiest month of the year. In November, the weather in Otaru is typically cold. Average daily high temperature in November is about 5 degrees above zero. On average, Otaru has 21 rainy, 4 sunny, 3 cloudy, and 2 partly cloudy days in November. The rains are usually heavy. November as well as March and April is considered the most uncomfortable time to visit Otaru.