Petersburg weather in July

In July, Petersburg sees average daytime highs of 88°F and overnight lows near 71°F, with 4.3 in of rain across 13 wet days and about 14.3 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 88°F through the month. The sky is clear or mostly clear about 26% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 14 h 30 min at the start of July to 14 hours by month's end. Set against the rest of the year, July is Petersburg's 10th-clearest and 11th-windiest month. For the whole year in context, see Petersburg's year-round climate.

Daytime high
88°
1st warmest
Overnight low
71°
12th coldest
Rainfall
4.3 in
13 wet days
Daylight
14 h 18 min
5:05 AM – 7:25 PM
Cloud cover
60%
10th clearest
Wind
5 mph
11th windiest
Solar energy
5.94 kWh/m²
Travel score
4.1
out of 10

Petersburg is independent city in Virginia, United States.

Density
541/km²
people per km²
Founded
1748

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 88°F through the month.

A typical July day in Petersburg reaches about 88°F in the afternoon and slips back to 71°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 81°F and 95°F. Set against its neighbours, July runs about 4°F warmer than June and about 2°F warmer than August.

60°70°80°90°100°151015202531
Avg high (°F)Avg low (°F)
18870
28870
38870
48871
58871
68871
78871
88871
98871
108971
118971
128971
138971
148971
158972
168972
178972
188972
198972
208972
218972
228972
238872
248872
258872
268872
278872
288871
298871
308871
318771

How July really feels in Petersburg

Once humidity and wind are folded in, July averages 31 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
31
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Petersburg weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan48° / 32°3.58.91.89.71.9
Feb51° / 33°3.08.61.810.62.7
Mar59° / 40°4.010.20.811.74.7
Apr69° / 50°3.29.5012.96.5
May77° / 58°3.410.70146.7
Jun85° / 67°3.811.2014.55.2
Jul88° / 71°4.313014.34.1
Aug86° / 70°4.411013.44.8
Sep80° / 63°4.69.6012.36.5
Oct70° / 52°3.77.70117.0
Nov60° / 41°3.27.80105.1
Dec52° / 35°3.48.70.99.52.8

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 22% of July, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25248
35248
45248
55248
65248
75050
85050
94951
104951
114852
124852
134852
144852
154753
164654
174654
184654
194654
204654
214654
224654
234654
244654
254753
264753
274852
284852
294852
304951
314951

Chance of precipitation in July

Any precipitation

Petersburg gets around 4.3 in of rain over 13 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 41% and peaks near 45% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
139
239
339
439
539
639
738
838
938
1038
1138
1238
1338
1438
1539
1640
1740
1841
1942
2043
2143
2244
2345
2445
2545
2645
2745
2844
2944
3043
3142

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the oppressive band about 44% of days. Sticky, muggy-or-worse air turns up on roughly 78% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
13101735350
23101735360
33101635370
43101635370
52101535380
62101535380
72101435390
82101435390
91101435400
10191435411
11191334411
12191334421
13181334431
14181334431
15171333441
16171333452
17161332462
18161332472
19151331482
20151331492
21141330502
22141330502
23141330502
24141329512
25141330502
26141330502
27141330502
28141331501
29141332491
30141432481
31151433471

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 30 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 30 minutes over July. Sunrise moves from 4:57 AM to 5:17 AM, and sunset from 7:29 PM to 7:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.54:577:29
214.54:577:29
314.54:587:29
414.54:587:29
514.54:597:29
614.54:597:28
714.55:007:28
814.55:007:28
914.45:017:28
1014.45:027:27
1114.45:027:27
1214.45:037:27
1314.45:037:26
1414.45:047:26
1514.35:057:26
1614.35:057:25
1714.35:067:25
1814.35:077:24
1914.35:087:23
2014.25:087:23
2114.25:097:22
2214.25:107:22
2314.25:107:21
2414.15:117:20
2514.15:127:20
2614.15:137:19
2714.15:147:18
2814.05:147:17
2914.05:157:16
3014.05:167:15
3114.05:177:15

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.94 kWh/m².

For context, solar energy here swings from a low near 2.14 kWh/m² to a high of 6.15 kWh/m² in June across the year — July's 5.94 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.2Intense
96.2Intense
106.2Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.0Intense
166.0Intense
176.0Bright
186.0Bright
195.9Bright
205.9Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.7Bright
265.7Bright
275.7Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in July

Is July a good time to visit Petersburg?

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

4.1
Sightseeing
9th-best month of the year
6.2
Beach & pool
4th-best month of the year

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

What to pack for Petersburg in July

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

In July, Petersburg sees daytime highs around 88°F and nights near 71°F. Pack light clothes. Worth having: rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Petersburg 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 Petersburg peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 22UV 9Dec 19UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Petersburg 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 Petersburg is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1416 µg/m³Nov 217 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar10Good
Apr11Good
May13Moderate
Jun15Moderate
Jul17Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov7Good
Dec7Good
Location & terrain

Where is Petersburg?

Petersburg sits at 37.2°N, 77.4°W, 72 ft above sea level, in United States. The nearest listed city is Colonial Heights, 2.5 mi away.

Topography around Petersburg

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

Within 2 miles, the terrain around Petersburg has only modest variations in elevation — a maximum elevation change of 233 ft around an average of 102 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 453 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 915 ft.

The land around Petersburg is covered by trees (53%) and artificial surfaces (28%) within 2 miles, trees (72%) within 10 miles, and trees (78%) within 50 miles.

2 miles
233 ft
10 miles
453 ft
50 miles
915 ft
treesgrasslandcroplandartificial surfaceswaterwetland
July weather nearby: Colonial Heights 2.5 mi · Hopewell 8.1 mi · Chester 9.3 mi · Meadowbrook 16 mi · Bon Air 22 mi · Highland Springs 22 mi · Richmond 23 mi · Midlothian 24 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 Petersburg (37.2279°, -77.4019°, elevation 72 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).