South Carolina experiences a humid subtropical climate with hot, humid summers and mild winters throughout the year. The state’s weather varies slightly between the coastal areas, such as Charleston and Myrtle Beach, and the inland regions like Columbia and Greenville, but generally, South Carolina enjoys long warm seasons and short, cool winters.
Summers in South Carolina are typically hot and humid, with average high temperatures ranging from the upper 80s to mid-90s Fahrenheit (around 31 to 35°C) as of 2026. Thunderstorms are frequent in the afternoons, especially in the summer months. Winters are mild and short, with average highs in the 50s to 60s Fahrenheit (10 to 20°C), and occasional cold fronts bringing brief cooler temperatures. Snowfall is rare and usually light, mainly in the upstate region. Spring and fall are pleasant with moderate temperatures and lower humidity, making these seasons popular for outdoor activities. The coastal areas are also subject to occasional hurricanes during the Atlantic hurricane season from June to November.
Key Points:
- South Carolina has hot, humid summers and mild, short winters year-round.
- Coastal areas experience slightly warmer winters and hurricane risks.
- Spring and fall offer moderate temperatures and lower humidity for comfort.
South Carolina’s weather supports a variety of outdoor lifestyles and tourism year-round.