Measurements:
°C
°F
Charleston
64°F
S 19 mph
Feels like: 56°F
Precip: 100%
World Resorts USA Charleston Weather September Weather in Charleston

Charleston Weather: September

Average Day Temperature: 87.9°F
Average Night Temperature: 76.5°F
Sea Water Temperature: 84.8°F
Number of Sunny Days: 12 days
Sunshine Hours: 11.9 - 12.8 hours
Number of Rainy Days: 7 days
Precipitation Totals: 4.9 in

Air Temperature in September, °F

Select Year: 2023 2022 2021

The highest day temperature in September 2023 was 102°F. The lowest night temperature was 67°F. The average values for day and night temperatures during September were 89.1°F и 76.0°F respectivly.

Charleston Water Sea Temperature in September, °F

Select Year: 2023 2022 2021

The average sea surface temperature in September 2023 for Charleston was 85.8°F. The maximum and minimum values were 79.2°F and 90.8°F respectively.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during September. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in September, in

Precipitation total in September for Charleston is 4.9 in. It makes september one of the most rainy months of the year.

Wind Speed in September, mph

The average wind speed in September is 8.2 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Charleston in September is 7.3 hours.

Best Time to Visit Charleston
The most sunny months:
May 16 days
October 15 days
April 15 days
The most warm months:
July 93.9 °F
August 92.3 °F
June 90.0 °F
Warmest sea temperature:
August 87.5 °F
July 87.2 °F
September 84.8 °F
The most cold months:
January 57.1 °F
February 61.3 °F
December 62.2 °F
The most rainy months:
August 10 days
July 9 days
June 8 days
The most windy months:
March 9 mph
April 9 mph
February 9 mph

Charleston on the Weather Map

USA Resorts:
NAME
Boston +46
Chicago +48
Hawaii +76
Honolulu +76
Houston +78
Las Vegas +70
Los Angeles +66
Miami +88
New York +48
Orlando +82
San Diego +64
San Francisco +54
Sarasota +74
Tampa +76
Washington +52
24 Hours Weather Forecast
Charleston
Local time: 15:05
28 mar, thursday
1800 60°F
S
16 mph
2100 56°F
S
10 mph
29 mar, friday
0000 52°F
SE
7 mph
0300 50°F
SE
8 mph
0600 48°F
S
8 mph
0900 52°F
S
7 mph
1200 62°F
S
3 mph
1500 66°F
E
5 mph