Meknes tends to be quite safe for solo female travelers. It's a smaller city compared to Marrakech or Fez, hence receives fewer tourists and less hustle tends to surround you. However, it is always advisable to adhere to local customs, stay vigilant especially at night, dress modestly to prevent unwanted attention and be aware of your belongings at all times. While crime against tourists is comparatively low, it never hurts to be cautious and alert.