Bristol weather in July

In July, Bristol sees average daytime highs of 82°F and overnight lows near 64°F, with 4.3 in of rain across 11.2 wet days and about 14.7 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 82°F through the month. The sky is clear or mostly clear about 27% of the time in July, and the air most often feels humid.

Daylight stretches from about 15 hours at the start of July to 14 h 18 min by month's end. Set against the rest of the year, July is Bristol's 7th-clearest and 11th-windiest month. For the whole year in context, see Bristol's year-round climate.

Daytime high
82°
1st warmest
Overnight low
64°
12th coldest
Rainfall
4.3 in
11.2 wet days
Daylight
14 h 42 min
4:35 AM – 7:20 PM
Cloud cover
59%
7th clearest
Wind
6 mph
11th windiest
Solar energy
5.96 kWh/m²
Travel score
6.1
out of 10

Bristol is city in Hartford County, Connecticut, United States.

Density
871/km²
people per km²
Founded
1785

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 82°F through the month.

A typical July day in Bristol reaches about 82°F in the afternoon and slips back to 64°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 90°F. Set against its neighbours, July runs about 5°F warmer than June and about 2°F warmer than August.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18163
28163
38163
48164
58164
68264
78264
88264
98264
108264
118264
128264
138264
148265
158265
168265
178265
188265
198265
208265
218265
228265
238265
248265
258265
268265
278265
288265
298265
308265
318265

How July really feels in Bristol

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.

Bristol weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan35° / 20°3.69.56.39.30.0
Feb37° / 22°3.18.75.410.30.0
Mar45° / 29°4.311.14.511.71.1
Apr58° / 40°3.911.21.213.14.0
May68° / 49°3.811.6014.36.0
Jun77° / 59°4.511.90156.4
Jul82° / 64°4.311.2014.76.1
Aug80° / 63°4.611013.76.4
Sep73° / 55°4.39.2012.36.9
Oct61° / 44°4.49.50.210.95.2
Nov49° / 35°3.58.71.19.62.2
Dec40° / 26°4.310.24.890.1

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% 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 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24753
34753
44753
54951
65050
75050
85050
95149
105149
115248
125248
135149
145149
155149
165149
175050
185050
195050
205050
214852
224852
234951
244951
254951
265050
275050
285050
295050
305050
315050

Chance of precipitation in July

Any precipitation

Bristol gets around 4.3 in of rain over 11.2 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 37% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
335
435
535
635
734
835
935
1035
1135
1236
1336
1437
1537
1638
1738
1838
1939
2039
2139
2239
2339
2439
2539
2639
2739
2840
2940
3039
3139

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the humid band about 26% of days. Sticky, muggy-or-worse air turns up on roughly 32% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1242526206
2242526206
3232525206
4232525216
5232525216
6232425216
7222425226
8222425226
9222325236
10212325246
11212325256
12202325266
13202325266
14192325276
15182325286
16182325287
17172225287
18172225297
19162225297
20162226297
21152226297
22152227297
23152227297
24142228288
25142228288
26142229278
27142229268
28142229259
29152229259
30152229249
31162229249

Wind in July

Winds average 6 mph in July.

Across July, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
305calm
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 hours at the start of July to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over July. Sunrise moves from 4:25 AM to 4:49 AM, and sunset from 7:25 PM to 7:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.04:257:25
215.04:267:25
315.04:267:25
415.04:277:24
514.94:287:24
614.94:287:24
714.94:297:24
814.94:297:23
914.94:307:23
1014.94:317:23
1114.84:317:22
1214.84:327:22
1314.84:337:21
1414.84:347:21
1514.84:347:20
1614.74:357:20
1714.74:367:19
1814.74:377:18
1914.74:387:18
2014.64:387:17
2114.64:397:16
2214.64:407:16
2314.64:417:15
2414.54:427:14
2514.54:437:13
2614.54:447:12
2714.44:457:11
2814.44:467:10
2914.44:477:09
3014.34:487:08
3114.34:497:07

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.96 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.67 kWh/m² to a high of 5.96 kWh/m² in June across the year — July's 5.96 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
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.0Intense
156.0Intense
166.0Bright
176.0Bright
185.9Bright
195.9Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in July

Hazard calendar for Bristol

In seasonPeak

In July, Bristol sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

Bristol sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Bristol?

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

6.1
Sightseeing
4th-best month of the year
6.5
Beach & pool
1st-best month of the year

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

What to pack for Bristol in July

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

In July, Bristol sees daytime highs around 82°F and nights near 64°F. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Bristol in July

The nearest coast averages about 71°F in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 38 mi away) is warmest in August at about 73°F and coldest in February near 36°F.

It's comfortable for a long swim from Jul 4 to Sep 28 — about 2.9 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan39Bracing
Feb36Bracing
Mar37Bracing
Apr44Bracing
May54Bracing
Jun64Cool
Jul71Refreshing
Aug73Refreshing
Sep71Refreshing
Oct64Cool
Nov55Bracing
Dec46Bracing

UV index in Bristol in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bristol peaks around July 11 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 11UV 8Dec 23UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May7Very high
Jun7Very high
Jul8Very high
Aug5High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Bristol 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 Bristol is worst in July — around 15 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1615 µg/m³Nov 197 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar12Good
Apr12Good
May13Moderate
Jun14Moderate
Jul15Moderate
Aug13Moderate
Sep11Good
Oct9Good
Nov7Good
Dec8Good
Location & terrain

Where is Bristol?

Bristol sits at 41.7°N, 72.9°W, 305 ft above sea level, in United States. The nearest listed city is Plainville, 5.0 mi away.

Topography around Bristol

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

Within 2 miles, the terrain around Bristol has significant variations in elevation — a maximum elevation change of 840 ft around an average of 545 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 2,585 ft.

The land around Bristol is covered by trees (68%) within 2 miles, trees (81%) within 10 miles, and trees (77%) within 50 miles.

2 miles
840 ft
10 miles
1,148 ft
50 miles
2,585 ft
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Plainville 5.0 mi · Wolcott 5.0 mi · Southington 6.2 mi · Farmington 6.8 mi · New Britain 8.7 mi · Waterbury 9.3 mi · Avon 11 mi · Newington 12 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 Bristol (41.6718°, -72.9493°, elevation 305 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).