Weihai is a generally safe city for solo female travelers. The rates of violent crime are low, and locals are typically friendly and willing to help foreigners. Daily life in Weihai goes on late into the night, and the city is well-lit and well-patrolled. Petty crimes like pickpocketing are not common, but like in any busy city, it's always important to stay aware of your surroundings. Just maintain regular precautions you would in any other location.