Charleston Weather in September
During September, Charleston experiences high daytime temperatures of 28°C (82°F) and cooler nights around 15°C (59°F). Expect quite a bit of rainfall. Around 99 mm (3.9 in) is typical.
Rainfall in Charleston in September
Looking at the last 30 years, the data shows about 8 days with rain, averaging 99 mm (3.9 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Charleston in September
Weather in Charleston is at its perfect in September. Highs reach 28°C (82°F), while nights settle around 15°C (59°F). Overall, the month follows a fairly predictable daily temperature pattern. At 15°C (59°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Charleston.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Charleston's climate page.
Charleston Temperature in September
Min Temperature
15°C (59°F)
Max Temperature
28°C (82°F)
Chance of Rain
27%
Precipitation
99 mm (3.9 in)
Rainy days
8 days
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Charleston in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes.What To Do in Charleston in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Charleston's climate page.
See the full Charleston climate overview or explore weather in the United States of America.
