World Resorts USA Charleston Weather

Charleston weather in July

Weather in Charleston: July

Average day temperature: 85.1°F
Average night temperature: 69.2°F
Number of sunny days: 11 days
Day length: 14.1 - 14.8 hours
Number of rainy days: 3 days
Precipitation totals: 1.6 in.

Air temperature in July, °F

Show year:
2026
2025
2024

The highest day temperature during July of 2026 was 98°F. At the same time the lowest night temperature was 62°F. Daily and nightly averages during July were 87.3°F and 69.4°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in July is almost equal.

Precipitation total in July, in.

Precipitation total value in Charleston in July is 1.6 in. Other months of the year show relatively similar values.

Wind speed in July, mph

The average wind speed value in July is 4.0 mph It makes July one of the least windy months of the year.

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 July is: 8.4.

Best time for vacation in Charleston

Sunniest months:
September 15 days
October 15 days
November 12 days
Warmest months:
July 85.1 °F
August 82.8 °F
June 80.8 °F
Coldest months:
January 38.5 °F
February 43.4 °F
December 44.5 °F
Rainiest months:
February 3 days
May 3 days
July 3 days
Windiest months:
March 6.8 mph
April 6.4 mph
January 6.4 mph

Charleston on a weather map

Charleston
+90°F
SE 2 mph
Feels like: +102°F
Precip.: 5%
Places in USA:
Name
°F
+81°F
+91°F
+77°F
+81°F
+72°F
+91°F
+73°F
+95°F
+88°F
+72°F
+59°F
+70°F
+88°F
+84°F
+75°F
24 Hours Forecast
Charleston
Local time: 11:25
August 15, saturday
1200
90°F
SE
2 mph
1500
90°F
E
2 mph
1800
88°F
S
2 mph
2100
79°F
NW
3 mph
August 16, sunday
0000
73°F
N
4 mph
0300
72°F
E
1 mph
0600
70°F
N
5 mph
0900
77°F
NE
6 mph
Units of measurement: °C / °F