Charleston

What is the climate like in Charleston?

The best time to visit Charleston is typically September – October, with trip comfort peaking in September (6.7/10). Charleston is warmest in July, when daily highs average 85°F (30°C), and coolest in January, when lows fall to about 30°F (-1°C). The wettest month is typically May and the driest is November; the year sees roughly 55 in (1389 mm) of precipitation.

• Best time to visitSeptember – October — comfort peaks in September (6.7/10)
• Warmest monthJuly — average high 85°F (30°C)
• Coolest monthJanuary — average low 30°F (-1°C)
• Wettest monthMay (6.2 in (156 mm))
• Driest monthNovember (3.2 in (81 mm))
• Annual precipitation55 in (1389 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromCharleston - Yeager AP, 5 km away (1947-2026)