If warm weather is your priority, southern destinations are often a good choice in March. Florida, Arizona, Southern California, and Hawaii can offer pleasant conditions for outdoor activities and sightseeing. Among the best places to visit in March USA, these destinations are worth considering for travelers who want sunshine, beaches, hiking, or relaxing vacations. Weather can still vary by location, so check the forecast before traveling. It is also helpful to consider spring-break crowds when choosing popular destinations during March.