Average data for 10 years
1 September
Sunday
+28°
+22°
2 September
Monday
+28°
+20°
3 September
Tuesday
+27°
+20°
4 September
Wednesday
+25°
+20°
5 September
Thursday
+26°
+19°
6 September
Friday
+26°
+19°
7 September
Saturday
+26°
+20°
8 September
Sunday
+25°
+20°
9 September
Monday
+24°
+18°
10 September
Tuesday
+24°
+19°
11 September
Wednesday
+23°
+18°
12 September
Thursday
+23°
+17°
13 September
Friday
+24°
+17°
14 September
Saturday
+25°
+18°
15 September
Sunday
+23°
+18°
16 September
Monday
+23°
+17°
17 September
Tuesday
+24°
+17°
18 September
Wednesday
+25°
+18°
19 September
Thursday
+23°
+18°
20 September
Friday
+25°
+18°
21 September
Saturday
+24°
+18°
22 September
Sunday
+24°
+18°
23 September
Monday
+24°
+17°
24 September
Tuesday
+23°
+18°
25 September
Wednesday
+23°
+17°
26 September
Thursday
+24°
+17°
27 September
Friday
+21°
+17°
28 September
Saturday
+21°
+16°
29 September
Sunday
+19°
+16°
30 September
Monday
+18°
+13°
September in Charlston is the sunniest month of the year. In September, the weather in Charlston is typically warm. Average daily high temperature in September is about 24 degrees above zero. On average, Charlston has 17 sunny, 10 partly cloudy, and 3 rainy days in September. The rains are usually moderate. September as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Charlston.