Charleston in September
Good time to visit
September starts the transition away from peak summer heat. It's still quite warm and humid, but becomes more bearable for walking around downtown and outdoor dining.
Weather
September offers the first hints that summer might eventually end. Temperatures drop slightly to the mid-80s, though humidity remains high. Afternoon storms continue but become less predictable and intense.
29°C high21°C low8 rain days
Crowds & Cost
moderate crowds
~$240/day average
Events & Festivals
- •MOJA Arts Festival
September Tips
- •Hurricane season continues through November - monitor forecasts
- •Tourist crowds thin out as school starts
- •Hotel rates start dropping from summer peaks
All Months
Spring and fall own Charleston's calendar. March through May brings 70-80 degree days, blooming azaleas, and the Charleston Wine + Food Festival in March. October and November deliver the same perfect temperatures with fewer crowds and lower hotel rates.
Summer means heat, humidity, and afternoon thunderstorms. July averages 89 degrees with 80% humidity — locals flee to the mountains or coast. But summer also brings cheaper accommodations and easier restaurant reservations. Plus, those afternoon storms cool things down for evening strolls.
Winter rarely drops below 40 degrees, making it pleasant for walking tours and outdoor dining. December through February sees the fewest tourists and lowest prices. Holiday decorations make the historic homes even more photogenic.
Avoid these dates unless you book far ahead: Spoleto Festival USA in late May/early June, Charleston Fashion Week in March, and any major University of South Carolina football weekend. Hotel rates triple and restaurants fill up.
Charleston Scores
Solo
7/10
Couples
9/10
Families
8/10
Adventure
4/10
Budget
6/10
Luxury
8/10
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