Charleston

What is the climate like in Charleston?

The best time to visit Charleston is typically August – October, with trip comfort peaking in September (7.2/10). Charleston is warmest in July, when daily highs average 89°F (32°C), and coolest in January, when lows fall to about 31°F (-1°C). The wettest month is typically March and the driest is November; the year sees roughly 53 in (1346 mm) of precipitation.

• Best time to visitAugust – October — comfort peaks in September (7.2/10)
• Warmest monthJuly — average high 89°F (32°C)
• Coolest monthJanuary — average low 31°F (-1°C)
• Wettest monthMarch (6.0 in (152 mm))
• Driest monthNovember (3.1 in (79 mm))
• Annual precipitation53 in (1346 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromCairo 3n, 20 km away (1908-2026)