If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Sandigliano: The hottest months are usually July and August with an average temp of 66°F, while the coldest months are January and February with an average of 38°F. The rainiest months in Sandigliano are November, May, October, and April, with each month seeing an average of 8 inches of rainfall.