2. San Diego, CA
San Diego ranks second in our list of the best places to visit in USA in December. San Diego has land and sea spectacles for everyone, young and old, to enjoy. There are outdoor concerts at Balboa Park all nights of December for the adults, the parade of lights for the entire family, San Diego Zoolights for the young ones (and the young once), and spectacular whale watching for the adventurous hearts.
Mark your calendars for the parades, the holiday performances at the numerous theaters across the city, and don’t forget to enjoy walking tours made extra, extra enjoyable by the mild weather.