West Haven weather in July

In July, West Haven sees average daytime highs of 78°F and overnight lows near 68°F, with 3.2 in of rain across 9.5 wet days and about 14.7 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 78°F through the month. The sky is clear or mostly clear about 34% of the time in July, and the air most often feels muggy.

Daylight stretches from about 14 h 54 min at the start of July to 14 h 18 min by month's end. Set against the rest of the year, July is West Haven's 4th-clearest and 11th-windiest month. For the whole year in context, see West Haven's year-round climate.

Daytime high
78°
1st warmest
Overnight low
68°
12th coldest
Rainfall
3.2 in
9.5 wet days
Daylight
14 h 42 min
4:36 AM – 7:19 PM
Cloud cover
56%
4th clearest
Wind
8 mph
11th windiest
Solar energy
6.16 kWh/m²
Travel score
6.9
out of 10

West Haven is city in Connecticut, United States.

Density
1,943/km²
people per km²
Founded
1921

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 78°F through the month.

A typical July day in West Haven reaches about 78°F in the afternoon and slips back to 68°F overnight — a 10°F spread between the day's warmth and the night's chill. On most days the high lands between 72°F and 84°F. Set against its neighbours, July runs about 6°F warmer than June and on par with August.

60°70°80°151015202531
Avg high (°F)Avg low (°F)
17666
27667
37767
47767
57767
67767
77767
87868
97868
107868
117868
127868
137868
147869
157869
167969
177969
187969
197969
207969
217969
227969
237969
247969
257969
267969
277969
287969
297969
307969
317969

How July really feels in West Haven

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.

West Haven weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan37° / 27°4.310.14.99.40.0
Feb37° / 27°3.89.14.310.30.0
Mar43° / 33°5.110.93.411.70.5
Apr53° / 42°4.611.50.513.12.8
May62° / 52°3.911.6014.35.1
Jun72° / 62°3.910.5014.96.5
Jul78° / 68°3.29.5014.76.9
Aug77° / 68°4.09.6013.77.0
Sep72° / 62°4.38.9012.36.9
Oct62° / 52°5.110.10.110.95.3
Nov51° / 42°4.39.50.69.72.6
Dec42° / 34°5.411.23.39.10.4

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 21% of July, with mostly cloudy or overcast conditions the remaining 46%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25248
35347
45347
55446
65446
75545
85545
95644
105644
115644
125644
135743
145743
155644
165545
175545
185446
195446
205446
215347
225347
235446
245347
255347
265446
275446
285446
295446
305545
315545

Chance of precipitation in July

Any precipitation

West Haven gets around 3.2 in of rain over 9.5 wet days in July, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 31% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
330
430
530
629
729
829
929
1029
1129
1229
1329
1429
1530
1630
1730
1831
1931
2032
2132
2232
2333
2433
2533
2633
2732
2832
2932
3032
3132

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 38% of days. Sticky, muggy-or-worse air turns up on roughly 52% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
172132356
272131356
372031357
472031358
562031358
661931359
761931359
8619303510
9518303611
10518293611
11517293712
12517283713
13417283713
14416283814
15416273815
16416273815
17415263916
18415263916
19414264017
20314254017
21314254118
22313254118
23313244118
24313244119
25313244119
26313244119
27313254119
28313254019
29313254019
30413254019
31414253918

Wind in July

Winds average 8 mph in July.

Across July, daily wind ranges from about 8 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 54 min 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 36 minutes over July. Sunrise moves from 4:27 AM to 4:50 AM, and sunset from 7:23 PM to 7:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.94:277:23
214.94:277:23
314.94:287:23
414.94:287:23
514.94:297:23
614.94:297:23
714.94:307:22
814.94:317:22
914.84:317:22
1014.84:327:21
1114.84:337:21
1214.84:337:21
1314.84:347:20
1414.74:357:20
1514.74:367:19
1614.74:367:19
1714.74:377:18
1814.74:387:17
1914.64:397:17
2014.64:407:16
2114.64:407:15
2214.64:417:14
2314.54:427:14
2414.54:437:13
2514.54:447:12
2614.44:457:11
2714.44:467:10
2814.44:477:09
2914.34:487:08
3014.34:497:07
3114.34:507:06

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.16 kWh/m².

For context, solar energy here swings from a low near 1.71 kWh/m² to a high of 6.18 kWh/m² in June across the year — July's 6.16 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.2Intense
166.2Intense
176.2Intense
186.1Intense
196.1Intense
206.1Intense
216.0Intense
226.0Intense
236.0Bright
246.0Bright
255.9Bright
265.9Bright
275.9Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in July

Hazard calendar for West Haven

In seasonPeak

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

West Haven 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 West Haven?

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

6.9
Sightseeing
2nd-best month of the year
6.4
Beach & pool
1st-best month of the year

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

What to pack for West Haven in July

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

In July, West Haven sees daytime highs around 78°F and nights near 68°F. Pack sun protection. Worth having: light clothes and rain gear. About 10 days see rain.

sun protectionlight clothesrain gear

Sea temperature near West Haven 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 11 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 West Haven 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 West Haven 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 22 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 11UV 8Dec 22UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in West Haven 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 West Haven is worst in July — around 20 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (November, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1120 µg/m³Nov 188 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar14Moderate
Apr16Moderate
May19Moderate
Jun20Moderate
Jul20Moderate
Aug17Moderate
Sep13Moderate
Oct9Good
Nov8Good
Dec9Good
Location & terrain

Where is West Haven?

West Haven sits at 41.3°N, 72.9°W, 33 ft above sea level, in United States. The nearest listed city is New Haven, 2.5 mi away.

Topography around West Haven

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

Within 2 miles, the terrain around West Haven has only modest variations in elevation — a maximum elevation change of 226 ft around an average of 39 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 738 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,749 ft.

The land around West Haven is covered by water (36%), artificial surfaces (29%) and trees (26%) within 2 miles, trees (45%) and water (38%) within 10 miles, and trees (60%) and water (31%) within 50 miles.

2 miles
226 ft
10 miles
738 ft
50 miles
1,749 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
July weather nearby: New Haven 2.5 mi · East Haven 4.3 mi · Milford 6.8 mi · City of Milford (balance) 6.8 mi · Branford 6.8 mi · Shelton 8.1 mi · Ansonia 8.7 mi · Hamden 9.3 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 West Haven (41.2707°, -72.9471°, elevation 33 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).