If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Villa di Tirano: The hottest months are usually July and August with an average temp of 54°F, while the coldest months are January and December with an average of 22°F. The rainiest months in Villa di Tirano are August, July, June, and May, with each month seeing an average of 11 inches of rainfall.