The premise that the Southeast US uniformly peaks November–June is inaccurate. This vast region (12+ states, diverse topography) operates on multiple, overlapping seasonal calendars driven by latitude, altitude, coastlines, and event calendars.
Florida (especially South Florida, Keys, Orlando) and coastal Gulf/Atlantic zones absorb "snowbirds" escaping northern winters. Orlando's theme parks run year-round but peak at holidays/spring break. Average highs: 70–80°F (21–27°C).
Georgia, Carolinas, Tennessee, Alabama shine: azaleas/dogwoods in Savannah/Charleston, Asheville's Biltmore blooms, Nashville's music festivals, Charleston Wine + Food, Masters Golf (Augusta). Mild temps (60–75°F), lower humidity.
Gulf Shores (AL), Panama City (FL), Outer Banks (NC), Myrtle Beach (SC), Gulf Coast (MS), Great Smokies, Lake Lanier/Allatoona. Family vacation peak. Hot/humid (85–95°F), afternoon thunderstorms, highest prices/crowds.
Blue Ridge Parkway, Great Smoky Mountains, North GA mountains, Natchez Trace. Leaf-peeping drives, apple orchards, Oktoberfests, college football weekends. Crisp air, vibrant color, shoulder-season value.
Atlanta, Nashville, Austin (TX), New Orleans, Charlotte, Raleigh draw business, music, food, sports, convention traffic 12 months a year. Weather is secondary to event calendars.
The Southeast doesn't have a tourist season—it has a portfolio. Match your dates to your desires.