Myrtle Beach Year-Round Climate: Subtropical Seasons Detailed

Myrtle Beach, South Carolina enjoys a humid subtropical climate (Köppen Cfa)—mild winters, hot humid summers, and consistent precipitation. This climate drives its appeal as a year-round destination with distinct seasonal characters.

Seasonal Breakdown

Spring (March-April)

• Temperature: 13-22°C (55-72°F), warming rapidly
• Rainfall: 75-100 mm/month (3-4 in)
• Humidity: High (70-80%)
• Character: Azalea blooms, golf season peak, moderate crowds

Summer (May-August)

• Temperature: 24-32°C (75-90°F), heat index often 35-40°C
• Rainfall: 125-150 mm/month (5-6 in) – wettest season
• Humidity: Very high (80-90%), oppressive
• Character: Peak tourism, afternoon thunderstorms, hurricane season begins June

Fall (September-October)

• Temperature: 18-27°C (64-81°F), pleasant
• Rainfall: 75-100 mm/month
• Humidity: High but declining
• Character: "Second summer," warm ocean, fewer crowds, hurricane risk peaks Sept

Winter (November-February)

• Temperature: 7-16°C (45-61°F), occasional freezes
• Rainfall: 75-100 mm/month
• Humidity: Moderate (60-70%)
• Character: Snowbird season, golf off-peak rates, rare snow (trace amounts)

Annual Summary

• Average Annual Temperature: 21°C (70°F)
• Average Annual Rainfall: 1,350 mm (53 in)
• Growing Season: ~240 days
• Ocean Temp Range: 13°C (55°F) winter → 28°C (82°F) summer

Planning Implications

Best weather: April-May, October-November (warm, lower humidity, less rain). Best value: January-March (lowest rates, mild temps). Hurricane awareness: June-November, peak Sept. Crowd avoidance: Skip June-August, holiday weekends.

Myrtle Beach's climate offers genuine four-season variation without extreme winter—making it a rare year-round coastal destination on the U.S. mainland.