Charleston Weather in September

Averages By Month

September Overview

The weather in Charleston in September is stunning. Temperatures still reach highs of 83°F (28°C), the sun shines for 7 hours each day and the Atlantic is still at its warmest water temperature of 84°F (28°C). The number of rainy days starts to decrease to 7 rainy days for the month and the humidity that was prevalent over summer gets more bearable too. Temperature lows are 72°F (22°C).

Lots of the summer crowd has left in September but it’s a pretty busy month in Charleston in terms of events. Music lovers might enjoy the Lowcountry Jazz Festival, foodies the Charleston Restaurant Week and art enthusiasts the MOJA Arts Festival.

High and Low Temperature in September °F

Water Temperature in September °F

Current Weather Charleston

68°F clear sky
Local Time

Hourly 10 Days

Averages Charleston

  J F M A M J J A S O N D

High °F

57° 60° 66° 73° 79° 85° 88° 87° 83° 75° 67° 61°

Low °F

43° 45° 51° 59° 67° 74° 77° 76° 72° 62° 53° 46°


6 7 8 9 10 9 9 8 7 7 6 6

Rain days

6 5 6 5 5 7 8 9 7 4 4 6

Water °F

63° 62° 62° 67° 73° 79° 83° 84° 82° 78° 72° 66°

Charleston Weather by Month

Best Time to Visit Charleston

Thanks to its subtropical climate, Charleston is a great place to visit any time of the year. Weatherwise, spring and fall are a favourite due to the super pleasant and mild weather in these periods. Spring is a favourite for seeing the beautiful magnolia trees in their full bloom. Summers are hot and humid but a fantastic time to visit if you are after some splashing around in the warm Atlantic water. Fall, especially October, is the time to visit to avoid the crowd and get the best deals while winters are ideal for enjoying the mild weather outdoors.

Things to know about Charleston

Charleston- the Beauty of the South

Many say that Charleston is even more beautiful than Savannah. Besides the beautiful historic center of town you will also find plenty of plantages surrounding the city. Many of those can also be visited. Three of the most famous plantages are highlighted below.


The city:

Charleston Location

Other destinations by month

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