October in Charleston averages a daily high of 24.5°C with nights around 17.6°C. Expect roughly 6.4 wet days totalling 90.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Charleston is March–May.
Based on DOWNTOWN CHARLESTON, SC US (0.8km), 1995–2024. 30 years of October data.