Is Viña del Mar Safe for Solo Female Travelers?

During the day, it is completely fine, but I would advise against going out at night alone, especially in winter. In the summer, it is safer since it gets dark later on in the night, but I would still advise not to go out alone since there's a higher rate of mugging.

Beautiful, but can be dangerous, you need to keep your eyes open around, don't walk with cell in your hand. Don't walk around at night alone. Especially if you don't look latina , people might pester you. Be careful of pick pockets. But overall people are friendly and willing to help and many beautiful places to see.