Weather in Charleston: May
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Average day temperature: | 70.9°F |
| Average night temperature: | 55.5°F | |
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Number of sunny days: | 8 days |
| Day length: | 13.8 - 14.6 hours | |
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Number of rainy days: | 3 days |
| Precipitation totals: | 1.4 in. | |
| more information | ||
14 days
forecast
forecast
| Charleston |
weather in
June
June
| Charleston |
Air temperature in May, °F
Show year:
2026
2025
2024
The highest day temperature during May of 2026 was 92°F. At the same time the lowest night temperature was 36°F. Daily and nightly averages during May were 73.3°F and 55.9°F.
Sunny, partly cloudy and cloudy days
Mostly all days in May are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in May, in.
Precipitation total value in Charleston in May is 1.4 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 5.4 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 7.3.
Best time for vacation in Charleston
Charleston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Charleston
Local time: 12:32
October 29, thursday
1500
72°F
E
6 mph
6 mph
1800
63°F
NE
2 mph
2 mph
2100
57°F
N
4 mph
4 mph
October 30, friday
0000
54°F
N
3 mph
3 mph
0300
52°F
N
3 mph
3 mph
0600
50°F
NE
2 mph
2 mph
0900
54°F
NE
2 mph
2 mph
1200
64°F
S
4 mph
4 mph
