Weather · Charleston, United States
Charleston Weather in September
Expect hot, mostly dry in Charleston through September: highs near 31°C, lows around 19°C, 55mm of rain across the month. It's one of the best months to visit.
Avg high
31°C
88°F
Avg low
19°C
66°F
Rainfall
55mm
#12 wettest of 12
What to pack
Light, breathable clothes and strong sun protection. Rain is unlikely to interrupt your plans.
Timing a trip around the weather? A Local Friend in Charleston builds it around the season for you.