Llandudno is considered safe by any standards, though as with any other tourist destination, it is easy to fall into a false sense of security about your own safety. Note that Llandudno is also a fully functioning medium sized town and is therefore subject to the same difficulties as any other town.
There are areas in Llandudno which tourists should avoid, though these areas are not areas where tourists would normally travel to. Most of these areas are safe in the day, but crime is common at night. These areas include the following:
The area behind and around the ASDA supermarket, opposite Parc Llandudno
The council estate behind the Llandudno Rugby Club
Parts of West Shore, particularly the council estate and King's Road
The area around Llandudno Hospital
Much of Llandudno Junction particularly at night