Weather in Charleston in Summer
June | July | August | ||||
Average day temperature: | 80.0°F | 84.6°F | 83.2°F | |||
Average night temperature: | 63.4°F | 68.4°F | 66.6°F | |||
Number of sunny days: | 9 days | 9 days | 9 days | |||
Day length: | 14.7 - 14.9 h. | 14.1 - 14.8 h. | 13.0 - 14.1 h. | |||
Number of rainy days: | 2 days | 4 days | 3 days | |||
Precipitation totals: | 1.3 in. | 2.0 in. | 1.5 in. |
current
weather
weather
Charleston |
monthly
weather
weather
Charleston |
weather in
April
April
Charleston |
14 days
forecast
forecast
Charleston |
Day & Night air temperature, °F
June
July
August
0
14
28
42
56
70
84
98
112
83.2
84.6
80.0
66.6
68.4
63.4
Day temperature | Night temperature |
Precipitation total, in.
June
July
August
0.0
0.3
0.7
1.0
1.4
1.7
2.0
2.4
1.5
2
1.3
Sunny, partly cloudy and cloudy days
June
July
August
0
5
10
15
20
25
30
35
11
10
9
11
12
11
9
9
9
Cloudy days | Partly cloudy days | Sunny days |
weather in
winter
winter
Charleston |
weather in
spring
spring
Charleston |
weather in
summer
summer
Charleston |
weather in
autumn
autumn
Charleston |
Wind speed, mph
June
July
August
0.0
0.8
1.6
2.5
3.3
4.1
4.9
5.7
6.6
3.9
4.2
4.8
Average sunny hours
June
July
August
0
1
2
3
4
5
6
7
8
9
10
7.9
7.8
8.6
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.
Best time for vacation in Charleston
Charleston on a weather map
Leaflet | Tiles © Esri
Places in USA:
Name
°F
24 Hours Forecast
Charleston
Local time: 08:53
April 14, monday
0900

61°F
NE
9 mph
9 mph
1200

70°F
NE
13 mph
13 mph
1500

75°F
NE
11 mph
11 mph
1800

73°F
E
11 mph
11 mph
2100

70°F
NE
11 mph
11 mph
April 15, tuesday
0000

64°F
E
12 mph
12 mph
0300

57°F
E
9 mph
9 mph
0600

55°F
E
12 mph
12 mph