August in Sand Point is the cloudiest and the warmest month of the year. In August, the weather in Sand Point is typically warm. Average daily high temperature in August is about 12 degrees above zero. On average, Sand Point has 15 rainy, 12 cloudy, 2 sunny, and 2 partly cloudy days in August. The rains are usually heavy. August as well as January, February, April, and May is considered the most uncomfortable time to visit Sand Point.