World Resorts USA Charleston

Charleston Monthly Weather Averages

Please click on any column to get detailed information about Charleston weather in that particular month. You will get daily weather information for that month for the last several years.

Day & Night air temperature, °F

The warmest month in Charleston is july. The average daily temp is 89.3°F. The average nightly temp is 78.4°F.

Sea water temperature, °F

The warmest sea temperature usually observed in August. Average daily sea water temperature during this month is 83.7°F.

Precipitation total, in.

January is the month with least precipitations during the year. The average precipitation totals for this month is 2.1 in. The month with most precipitation total is August.

Number of rainy days

This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.

Wind speed, mph
Sunny, partly cloudy and cloudy days
Average sunny hours

Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

* Charts above show average data for the last 3 years.

Best time for vacation in Charleston

Sunniest months:
April 16 days
October 15 days
May 15 days
Warmest months:
July 89.3 °F
August 87.8 °F
June 86.0 °F
Warmest sea temp:
August 83.7 °F
July 83.6 °F
September 81.2 °F
Coldest months:
January 56.4 °F
February 60.2 °F
December 61.0 °F
Rainiest months:
August 10 days
July 9 days
June 7 days
Windiest months:
March 9.4 mph
April 9.4 mph
February 9.1 mph

Charleston on a weather map

Charleston
+61°F
E 9 mph
Feels like: +61°F
Precip.: 0%
Places in USA:
Name
°F
+46°F
+50°F
+75°F
+75°F
+45°F
+57°F
+75°F
+70°F
+46°F
+54°F
+55°F
+70°F
+68°F
+66°F
+34°F
24 Hours Forecast
Charleston
Local time: 13:28
November 21, thursday
1500
64°F
E
16 mph
1800
63°F
E
16 mph
2100
54°F
E
14 mph
November 22, friday
0000
50°F
E
12 mph
0300
48°F
E
13 mph
0600
45°F
E
13 mph
0900
46°F
E
14 mph
1200
52°F
SE
17 mph
Units of measurement: °C / °F