Wels is generally a safe city for solo female travelers. Crimes are relatively rare and they often include petty crimes such as pickpocketing, especially in crowded areas. Austria as a country has a very low crime rate compared to other European countries. In Wels, the locals are friendly and welcoming to tourists, especially to solo female travelers. The public transportation is reliable and safe to use, even during the night. However, like in any other city, it's always important to be aware of your surroundings and avoid isolated areas late at night.