Suwa is typically a very safe city for solo female travelers. The crime rate is noticeably lower compared to other cities globally. Public transport is safe and reliable, and the local people are generally very helpful and respectful. The biggest concern might be communication problems as not everyone speaks English, but most signs are bilingual or even trilingual. The city has a lot of well-lit and densely populated areas, which contributes to the feeling of safety. It is still always necessary for travelers to take standard precautions, especially at night, but overall, issues or dangers are highly unlikely.