Taking into account the local weather in Sund is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually August and July with an average temp of 56°F, while the coldest months are February and January with an average of 36°F. The snowiest months in Sund are January, February, December, and March, with each month seeing an average of 7 inches of snowfall.