Weather in Charleston in Summer
| June | July | August | ||||
| Average day temperature: | 86.0°F | 89.3°F | 87.8°F | |||
| Average night temperature: | 74.8°F | 78.2°F | 77.4°F | |||
| Sea water temperature: | 80.2°F | 83.6°F | 83.7°F | |||
| Number of sunny days: | 12 days | 13 days | 11 days | |||
| Day length: | 14.2 - 14.3 h. | 13.8 - 14.3 h. | 12.9 - 13.7 h. | |||
| Number of rainy days: | 7 days | 9 days | 10 days | |||
| Precipitation totals: | 3.9 in. | 4.8 in. | 5.7 in. | |||
current
weather
weather
| Charleston |
monthly
weather
weather
| Charleston |
sea water
temperature
temperature
| Charleston |
14 days
forecast
forecast
| Charleston |
Day & Night air temperature, °F
June
July
August
0
15
30
45
60
75
90
105
120
87.3
88.9
84.9
77.4
78.2
74.5
| Day temperature | Night temperature |
Sea water temperature, °F
June
July
August
0
14
28
42
56
70
84
98
112
83.7
83.6
80.2
Precipitation total, in.
June
July
August
0.0
1.1
2.3
3.4
4.5
5.6
6.8
7.9
6.6
5.4
4.5
Sunny, partly cloudy and cloudy days
June
July
August
0
5
10
15
20
25
30
35
10
7
7
13
14
14
8
10
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
1.4
2.8
4.2
5.6
7.0
8.4
9.8
11.2
7.4
7.7
8.2
Average sunny hours
June
July
August
0
1
2
3
4
5
6
7
8
9
7.4
7.5
8.3
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
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Places in USA:
Name
°F
24 Hours Forecast
Charleston
Local time: 23:43
April 22, tuesday
0000
70°F
N
8 mph
8 mph
0300
68°F
NE
9 mph
9 mph
0600
68°F
NE
7 mph
7 mph
0900
72°F
NE
9 mph
9 mph
1200
79°F
N
11 mph
11 mph
1500
81°F
N
12 mph
12 mph
1800
77°F
N
12 mph
12 mph
2100
70°F
N
8 mph
8 mph
