Shirley weather in July

In July, Shirley sees average daytime highs of 76°F and overnight lows near 71°F, with 3.0 in of rain across 8.6 wet days and about 14.6 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 76°F through the month. The sky is clear or mostly clear about 39% 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 12 min by month's end. Set against the rest of the year, July is Shirley's 4th-clearest and 11th-windiest month. For the whole year in context, see Shirley's year-round climate.

Daytime high
76°
1st warmest
Overnight low
71°
12th coldest
Rainfall
3.0 in
8.6 wet days
Daylight
14 h 42 min
4:37 AM – 7:17 PM
Cloud cover
52%
4th clearest
Wind
10 mph
11th windiest
Solar energy
6.52 kWh/m²
Travel score
7.2
out of 10

Shirley is census-designated place in New York, USA.

Density
934/km²
people per km²

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 76°F through the month.

A typical July day in Shirley reaches about 76°F in the afternoon and slips back to 71°F overnight — a 6°F spread between the day's warmth and the night's chill. On most days the high lands between 72°F and 81°F. Set against its neighbours, July runs about 7°F warmer than June and on par with August.

60°70°80°151015202531
Avg high (°F)Avg low (°F)
17469
27569
37569
47569
57569
67670
77670
87670
97670
107670
117670
127671
137671
147771
157771
167771
177771
187771
197771
207771
217771
227771
237771
247772
257772
267772
277772
287772
297772
307772
317772

How July really feels in Shirley

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.

Shirley 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
Jan40° / 31°3.79.83.99.40.0
Feb40° / 31°3.49.13.510.40.0
Mar44° / 36°4.410.22.811.70.8
Apr52° / 45°3.610.30.413.12.7
May60° / 53°3.310.2014.24.8
Jun70° / 64°3.38.8014.96.7
Jul76° / 71°3.08.6014.67.2
Aug76° / 70°3.79.3013.67.2
Sep71° / 65°3.78.8012.36.9
Oct62° / 55°4.39010.95.5
Nov53° / 46°3.68.70.39.73.2
Dec45° / 37°4.610.62.29.11.1

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 18% of July, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25545
35644
45644
55644
65743
75743
85743
95842
105842
115842
125941
135941
145941
155842
165842
175842
185842
195842
205743
215743
225743
235743
245743
255743
265743
275743
285743
295842
305842
315941

Chance of precipitation in July

Any precipitation

Shirley gets around 3.0 in of rain over 8.6 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 28% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
427
526
626
726
826
926
1026
1126
1226
1326
1426
1526
1627
1727
1828
1928
2029
2129
2229
2329
2429
2529
2630
2730
2830
2930
3030
3130

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 39% 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 (%)
14123142100
24123042120
34113042130
44112942140
54102942150
64102842160
73102842170
8392742190
9392642200
10392642210
11292542220
12292441240
13292341250
14292341260
15192240271
16192240281
17192139291
18192139301
19192038301
20192038311
21191938321
22191937331
23191937341
24091936341
25091936351
26191936351
27191935351
28191935351
29191935350
30191935350
31191935350

Wind in July

Winds average 10 mph in July.

Across July, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
279light breeze
289light breeze
299light breeze
309light breeze
319light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 54 min at the start of July to 14 h 12 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 4:28 AM to 4:51 AM, and sunset from 7:22 PM to 7:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.94:287:22
214.94:287:22
314.94:297:21
414.94:297:21
514.94:307:21
614.84:317:21
714.84:317:21
814.84:327:20
914.84:327:20
1014.84:337:20
1114.84:347:19
1214.74:347:19
1314.74:357:18
1414.74:367:18
1514.74:377:17
1614.74:377:17
1714.64:387:16
1814.64:397:16
1914.64:407:15
2014.64:417:14
2114.54:417:14
2214.54:427:13
2314.54:437:12
2414.54:447:11
2514.44:457:10
2614.44:467:09
2714.44:477:09
2814.34:487:08
2914.34:497:07
3014.34:507:06
3114.24:517:05

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.52 kWh/m².

For context, solar energy here swings from a low near 1.74 kWh/m² to a high of 6.55 kWh/m² in June across the year — July's 6.52 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.8Intense
46.8Intense
56.8Intense
66.8Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.6Intense
146.6Intense
156.6Intense
166.6Intense
176.5Intense
186.5Intense
196.5Intense
206.4Intense
216.4Intense
226.4Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.2Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in July

Hazard calendar for Shirley

In seasonPeak

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

Shirley 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 Shirley?

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

7.2
Sightseeing
1st-best month of the year
6.4
Beach & pool
1st-best month of the year

July is one of the better times to visit Shirley for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Shirley in July

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

In July, Shirley sees daytime highs around 76°F and nights near 71°F. Pack sun protection. Worth having: light clothes and rain gear. About 9 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Shirley 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 12 mi away) is warmest in August at about 73°F and coldest in February near 40°F.

It's comfortable for a long swim from Jul 4 to Sep 22 — about 2.7 months when the water holds above 68°F.

40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan44Bracing
Feb40Bracing
Mar41Bracing
Apr45Bracing
May53Bracing
Jun64Cool
Jul71Refreshing
Aug73Refreshing
Sep69Refreshing
Oct63Cool
Nov56Bracing
Dec49Bracing

UV index in Shirley 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 Shirley 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 Shirley 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 Shirley is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1016 µg/m³Nov 178 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar14Moderate
Apr15Moderate
May16Moderate
Jun16Moderate
Jul17Moderate
Aug14Moderate
Sep11Good
Oct9Good
Nov8Good
Dec8Good
Location & terrain

Where is Shirley?

Shirley sits at 40.8°N, 72.9°W, 52 ft above sea level, in United States. The nearest listed city is Mastic, 1.2 mi away.

Topography around Shirley

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

Within 2 miles, the terrain around Shirley has only modest variations in elevation — a maximum elevation change of 118 ft around an average of 49 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 335 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,010 ft.

The land around Shirley is covered by trees (67%) within 2 miles, trees (47%) and water (34%) within 10 miles, and water (58%) and trees (32%) within 50 miles.

2 miles
118 ft
10 miles
335 ft
50 miles
1,010 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
July weather nearby: Mastic 1.2 mi · Medford 6.8 mi · East Patchogue 6.8 mi · Coram 8.7 mi · Farmingville 8.7 mi · Holtsville 9.3 mi · Selden 9.9 mi · Holbrook 11 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 Shirley (40.8015°, -72.8676°, elevation 52 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).