Weather In Myrtle Beach In October 2025. Weather.com brings you the most accurate monthly weather forecast for myrtle beach, sc with average/record and high/low temperatures, precipitation and more. Extended weather forecast in myrtle beach.
As myrtle beach, south carolina, ushers in october, there’s a tangible shift to fall weather, with temperatures dropping and rainfall. Detailed graphs of monthly weather forecast, temperatures, and degree days.