How hot and humid does it get during the summer months?
Question & Answer about South Carolina
Updated June 6, 2026
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South Carolina State Facts
State Flag
South Carolina
Capital
Columbia
State Bird
Carolina Wren
Statehood
May 23, 1788
State Flower
Yellow Jessamine
Population
5.3 million (2020)
Answer
South Carolina experiences hot and humid summers, with temperatures frequently climbing into the upper 80s to mid-90s Fahrenheit. The combination of high temperatures and humidity levels often makes the heat feel more intense, creating a muggy and sometimes uncomfortable atmosphere, especially in inland areas like Columbia and Greenville.
Humidity in South Carolina during summer is typically high, often ranging between 70% and 90%, due to the stateās proximity to the Atlantic Ocean and its coastal plains. Coastal cities such as Charleston and Myrtle Beach tend to have slightly moderated temperatures but still experience significant humidity, which contributes to a tropical-like feel. Summer storms and afternoon thunderstorms are common, providing occasional relief from the heat but also adding to the overall moisture in the air. As of April 2026, residents and visitors should prepare for consistently warm, humid conditions throughout June, July, and August.
Key Points:
- Summer temperatures in South Carolina often reach the mid-90s Fahrenheit.
- Humidity levels frequently range between 70% and 90% during summer months.
- Coastal and inland areas both experience hot, humid conditions with regular thunderstorms.
These summer conditions strongly influence lifestyle and outdoor activities in South Carolina.
Humidity in South Carolina during summer is typically high, often ranging between 70% and 90%, due to the stateās proximity to the Atlantic Ocean and its coastal plains. Coastal cities such as Charleston and Myrtle Beach tend to have slightly moderated temperatures but still experience significant humidity, which contributes to a tropical-like feel. Summer storms and afternoon thunderstorms are common, providing occasional relief from the heat but also adding to the overall moisture in the air. As of April 2026, residents and visitors should prepare for consistently warm, humid conditions throughout June, July, and August.
Key Points:
- Summer temperatures in South Carolina often reach the mid-90s Fahrenheit.
- Humidity levels frequently range between 70% and 90% during summer months.
- Coastal and inland areas both experience hot, humid conditions with regular thunderstorms.
These summer conditions strongly influence lifestyle and outdoor activities in South Carolina.
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