Charleston weather in July

In July, Charleston sees average daytime highs of 83°F and overnight lows near 67°F, with 5.0 in of rain across 14.2 wet days and about 14.4 hours of daylight. It is the 1st-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 83°F through the month. The sky is clear or mostly clear about 28% of the time in July, and the air most often feels muggy.

Daylight stretches from about 14 h 36 min at the start of July to 14 hours by month's end. Set against the rest of the year, July is Charleston's 5th-clearest and 11th-windiest month. For the whole year in context, see Charleston's year-round climate.

Daytime high
83°
1st warmest
Overnight low
67°
12th coldest
Rainfall
5.0 in
14.2 wet days
Daylight
14 h 24 min
5:19 AM – 7:45 PM
Cloud cover
59%
5th clearest
Wind
5 mph
11th windiest
Solar energy
5.86 kWh/m²
Travel score
5.2
out of 10

Charleston is capital city of the U.S. state of West Virginia and seat of Kanawha County.

Density
554/km²
people per km²
Founded
1786

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 83°F through the month.

A typical July day in Charleston reaches about 83°F in the afternoon and slips back to 67°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 77°F and 90°F. Set against its neighbours, July runs about 3°F warmer than June and on par with August.

60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18366
28366
38366
48367
58367
68367
78367
88367
98467
108467
118467
128467
138467
148467
158467
168467
178467
188468
198468
208468
218468
228467
238367
248367
258367
268367
278367
288367
298367
308367
318367

How July really feels in Charleston

Once humidity and wind are folded in, July averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Charleston weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan43° / 28°4.012.14.89.60.5
Feb46° / 30°3.811.94.310.51.2
Mar55° / 37°4.713.52.811.73.3
Apr67° / 47°4.313.10.5135.5
May73° / 56°5.014.6014.16.0
Jun81° / 64°4.914.2014.65.8
Jul83° / 67°5.014.2014.45.2
Aug82° / 66°3.911.5013.56.0
Sep77° / 59°3.89.4012.36.9
Oct67° / 48°3.49.50.1116.3
Nov56° / 38°3.49.919.93.7
Dec47° / 32°4.11239.41.3

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 23% of July, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
25050
35050
45050
55050
65149
75149
85149
95149
105149
115149
125149
135149
145149
155149
165149
174951
184951
194951
205050
215050
225149
235149
245248
255248
265347
275446
285446
295545
305545
315545

Chance of precipitation in July

Any precipitation

Charleston gets around 5.0 in of rain over 14.2 wet days in July, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 45% and peaks near 48% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
144
244
344
444
543
643
743
843
943
1043
1143
1244
1344
1445
1545
1646
1746
1847
1947
2048
2148
2248
2348
2447
2547
2647
2746
2845
2944
3044
3143

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the muggy band about 42% of days. Sticky, muggy-or-worse air turns up on roughly 66% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
15132246140
25132246150
35122245150
44122245160
54122245170
64122245170
74112245180
83112245190
93112244200
103102244200
113102244210
122102243220
132102243230
14292242240
15292241250
16292241261
17282140271
18282140281
19282140291
20282139291
21272139301
22272040301
23282040301
24282040301
25182040291
26182141291
27182141280
28192142260
29192242250
30192243240
312102243230

Wind in July

Winds average 5 mph in July.

Across July, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 36 min at the start of July to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over July. Sunrise moves from 5:11 AM to 5:31 AM, and sunset from 7:49 PM to 7:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.65:117:49
214.65:117:49
314.65:127:49
414.65:127:49
514.65:137:49
614.65:137:49
714.65:147:48
814.65:147:48
914.65:157:48
1014.55:157:47
1114.55:167:47
1214.55:177:47
1314.55:177:46
1414.55:187:46
1514.45:197:45
1614.45:197:45
1714.45:207:44
1814.45:217:44
1914.45:227:43
2014.35:227:43
2114.35:237:42
2214.35:247:41
2314.35:257:41
2414.25:257:40
2514.25:267:39
2614.25:277:38
2714.25:287:38
2814.15:297:37
2914.15:307:36
3014.15:307:35
3114.05:317:34

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.86 kWh/m².

For context, solar energy here swings from a low near 1.76 kWh/m² to a high of 6.09 kWh/m² in June across the year — July's 5.86 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.0Intense
86.0Intense
96.0Intense
106.0Bright
116.0Bright
126.0Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in July

Is July a good time to visit Charleston?

Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.2
Sightseeing
7th-best month of the year
6.4
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Charleston for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Charleston in July

From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In July, Charleston sees daytime highs around 83°F and nights near 67°F. Pack light clothes and rain gear. Worth having: sun protection. About 14 days see rain.

light clothesrain gearsun protection

UV index in Charleston in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Charleston peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 20UV 9Dec 22UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5High
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Charleston in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Charleston is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (December, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1418 µg/m³Dec 147 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar9Good
Apr11Good
May14Moderate
Jun17Moderate
Jul18Moderate
Aug15Moderate
Sep12Good
Oct7Good
Nov7Good
Dec7Good
Location & terrain

Where is Charleston?

Charleston sits at 38.3°N, 81.6°W, 597 ft above sea level, in United States. The nearest listed city is Huntington, 44 mi away.

Topography around Charleston

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Charleston.

Within 2 miles, the terrain around Charleston has only modest variations in elevation — a maximum elevation change of 623 ft around an average of 814 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,148 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,002 ft.

The land around Charleston is covered by trees (63%) and artificial surfaces (26%) within 2 miles, trees (89%) within 10 miles, and trees (93%) within 50 miles.

2 miles
623 ft
10 miles
1,148 ft
50 miles
3,002 ft
treesgrasslandartificial surfaceswater
July weather nearby: Huntington 44 mi · Beckley 47 mi · Ashland 55 mi · Meads 58 mi · Parkersburg 63 mi · Athens 72 mi · Portsmouth 78 mi · Clarksburg 94 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Charleston (38.3498°, -81.6326°, elevation 597 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).