December in Sand Point is the rainiest and the windiest month of the year. In December, the weather in Sand Point is typically cold. Average daily high temperature in December is about 3 degrees above zero. On average, Sand Point has 22 rainy, 4 sunny, 3 cloudy, and 2 partly cloudy days in December. The rains are usually heavy. December as well as January, February, April, and May is considered the most uncomfortable time to visit Sand Point.