Planning for the weather is a good way to make your trip to Belluno relaxing and enjoyable, especially when you're splurging. The hottest months are usually July and August with an average temp of 65°F, while the coldest months are January and December with an average of 37°F. The rainiest months in Belluno are November, May, October, and June, with each month seeing an average of 7 inches of rainfall.