If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Nesselwaengle: The hottest months are usually July and August with an average temp of 56°F, while the coldest months are February and January with an average of 28°F. The rainiest months in Nesselwaengle are August, June, May, and July, with each month seeing an average of 10 inches of rainfall.