If you're looking forward to lots of outings with your partner, check out these details about year-round temperatures in Sankt Gallenkirch: The hottest months are usually July and August with an average temp of 56°F, while the coldest months are January and February with an average of 27°F. The snowiest months in Sankt Gallenkirch are April, May, November, and January, with each month seeing an average of 5 inches of snowfall.