World Resorts USA Charleston Weather

Charleston weather in May

Weather in Charleston: May

Average day temperature: 70.0°F
Average night temperature: 55.1°F
Number of sunny days: 7 days
Day length: 13.8 - 14.6 hours
Number of rainy days: 5 days
Precipitation totals: 2.0 in.

Air temperature in May, °F

Show year:
2023
2022
2021

The highest day temperature during May of 2023 was 81°F. At the same time the lowest night temperature was 40°F. Day and night temperature averages during May were 69.7°F and 53.7°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 2.0 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: 7.0.

Best time for vacation in Charleston

Sunniest months:
September 14 days
November 13 days
October 12 days
Warmest months:
July 84.8 °F
August 82.9 °F
June 79.4 °F
Coldest months:
January 40.1 °F
February 44.7 °F
December 46.1 °F
Rainiest months:
May 5 days
July 5 days
February 4 days
Windiest months:
March 6.7 mph
April 6.3 mph
February 6.3 mph

Charleston on a weather map

Charleston
+79°F
SW 2 mph
Feels like: +79°F
Precip.: 100%
Places in USA:
Name
°F
+55°F
+59°F
+77°F
+77°F
+88°F
+68°F
+88°F
+70°F
+99°F
+66°F
+61°F
+88°F
+90°F
+91°F
+75°F
24 Hours Forecast
Charleston
Local time: 15:42
May 18, saturday
1800
73°F
S
4 mph
2100
64°F
SW
2 mph
May 19, sunday
0000
61°F
SW
2 mph
0300
59°F
SW
2 mph
0600
57°F
W
2 mph
0900
66°F
SW
2 mph
1200
77°F
S
4 mph
1500
82°F
S
6 mph
Units of measurement: °C / °F