If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Nesselwang: The hottest months are usually July and August with an average temp of 60°F, while the coldest months are January and February with an average of 32°F. The rainiest months in Nesselwang are August, May, June, and July, with each month seeing an average of 7 inches of rainfall.