Sutri is generally very safe for solo female travelers. The town is small, welcoming, and peaceful, with low crime rates. Most locals are friendly and respectful towards visitors, including solo female travelers. During the day, you can roam freely, visit the sites, and dine at local eateries without fear. At night, streets may be quieter but remain safe. As always, it's common sense to stay aware of your surroundings, especially at night, but Sutri does not pose major concerns for female travelers on their own.