Newcastle-upon-Tyne is generally safe for solo female travelers. The city has a vibrant, friendly atmosphere, and people are known to be welcoming. Petty crimes such as pickpocketing can happen, especially in crowded areas and on public transportation, so vigilance is required, especially at night. Most areas are safe to explore, but like everywhere, there are locations you may want to avoid, particularly at night. Taking usual precautions like not flashing valuable items, walking in well-lit and populated areas after dark should keep you safe. It is always recommended to stay alert and keep aware of your surroundings.