Newark weather in July

In July, Newark sees average daytime highs of 85°F and overnight lows near 70°F, with 4.0 in of rain across 11.1 wet days and about 14.5 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 85°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 48 min at the start of July to 14 h 06 min by month's end. Set against the rest of the year, July is Newark's 5th-clearest and 11th-windiest month. For the whole year in context, see Newark's year-round climate.

Daytime high
85°
1st warmest
Overnight low
70°
12th coldest
Rainfall
4.0 in
11.1 wet days
Daylight
14 h 36 min
4:52 AM – 7:25 PM
Cloud cover
58%
5th clearest
Wind
6 mph
11th windiest
Solar energy
6.04 kWh/m²
Travel score
5.0
out of 10

Newark is city in New Castle County, Delaware, United States.

Density
1,421/km²
people per km²
Founded
1694

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 85°F through the month.

A typical July day in Newark reaches about 85°F in the afternoon and slips back to 70°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 78°F and 93°F. Set against its neighbours, July runs about 4°F warmer than June and about 2°F warmer than August.

60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18569
28569
38569
48569
58569
68569
78569
88569
98570
108670
118670
128670
138670
148670
158670
168670
178670
188670
198670
208670
218670
228670
238670
248570
258570
268570
278570
288570
298570
308570
318570

How July really feels in Newark

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.

Newark 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
Jan40° / 28°3.39.23.89.50.0
Feb43° / 29°3.08.83.310.40.5
Mar51° / 36°4.210.32.311.72.6
Apr63° / 46°3.710.50.3135.3
May72° / 55°3.610.9014.26.5
Jun81° / 65°3.911014.86.0
Jul85° / 70°4.011.1014.55.0
Aug83° / 68°3.710.3013.65.8
Sep77° / 61°4.49.5012.36.9
Oct65° / 50°3.68.1010.96.2
Nov54° / 39°3.07.70.39.83.5
Dec45° / 32°4.09.21.89.20.9

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 (%)
14852
24951
34951
44951
54951
65050
75149
85149
95248
105248
115347
125446
135446
145446
155446
165347
175347
185347
195248
205248
215248
225248
235050
245050
255050
265050
275050
284951
294951
304951
315050

Chance of precipitation in July

Any precipitation

Newark gets around 4.0 in of rain over 11.1 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 36% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
335
435
534
634
733
833
932
1032
1132
1232
1332
1432
1532
1633
1733
1834
1935
2036
2137
2238
2338
2439
2540
2640
2741
2841
2941
3041
3141

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 30% of days. Sticky, muggy-or-worse air turns up on roughly 57% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
19192329200
29192328200
39192328210
49192328210
59182328220
69182327221
79182327231
89172228231
99172228241
108162228241
118162229251
128162129251
138152129251
147152130261
157152130261
167152130271
177142030271
186142031272
196142031282
206132032282
215132032282
225122033282
235122033282
245122133281
255112133281
265112233281
275112233281
285112233281
295112333281
306112333271
316112333270

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
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 48 min at the start of July to 14 h 06 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 4:43 AM to 5:05 AM, and sunset from 7:30 PM to 7:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.84:437:30
214.84:447:30
314.84:447:29
414.74:447:29
514.74:457:29
614.74:467:29
714.74:467:29
814.74:477:28
914.74:477:28
1014.74:487:28
1114.64:497:27
1214.64:497:27
1314.64:507:27
1414.64:517:26
1514.64:517:26
1614.64:527:25
1714.54:537:25
1814.54:547:24
1914.54:547:23
2014.54:557:23
2114.44:567:22
2214.44:577:21
2314.44:587:21
2414.44:597:20
2514.34:597:19
2614.35:007:18
2714.35:017:17
2814.25:027:16
2914.25:037:15
3014.25:047:14
3114.15:057:13

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.04 kWh/m².

For context, solar energy here swings from a low near 1.85 kWh/m² to a high of 6.12 kWh/m² in June across the year — July's 6.04 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.1Intense
166.1Intense
176.1Intense
186.0Intense
196.0Intense
206.0Bright
215.9Bright
225.9Bright
235.9Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in July

Hazard calendar for Newark

In seasonPeak

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

Newark 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 Newark?

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

5.0
Sightseeing
7th-best month of the year
6.7
Beach & pool
2nd-best month of the year

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

What to pack for Newark in July

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

In July, Newark sees daytime highs around 85°F and nights near 70°F. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

Sea temperature near Newark in July

The nearest coast averages about 74°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 44 mi away) is warmest in August at about 76°F and coldest in February near 37°F.

It's comfortable for a long swim from Jun 19 to Oct 3 — about 3.5 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan39Bracing
Feb37Bracing
Mar41Bracing
Apr49Bracing
May58Bracing
Jun67Cool
Jul74Refreshing
Aug76Warm
Sep73Refreshing
Oct64Cool
Nov53Bracing
Dec44Bracing

UV index in Newark 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 Newark peaks around July 11 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 11UV 8Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun8Very high
Jul9Very high
Aug6High
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Newark 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 Newark is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1317 µg/m³Nov 128 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar13Moderate
Apr13Moderate
May15Moderate
Jun16Moderate
Jul17Moderate
Aug14Moderate
Sep12Good
Oct9Good
Nov8Good
Dec9Good
Location & terrain

Where is Newark?

Newark sits at 39.7°N, 75.7°W, 125 ft above sea level, in United States. The nearest listed city is Bear, 6.2 mi away.

Topography around Newark

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

Within 2 miles, the terrain around Newark has only modest variations in elevation — a maximum elevation change of 302 ft around an average of 148 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 732 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,647 ft.

The land around Newark is covered by trees (58%) and artificial surfaces (24%) within 2 miles, trees (58%) and grassland (21%) within 10 miles, and trees (49%) within 50 miles.

2 miles
302 ft
10 miles
732 ft
50 miles
1,647 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
July weather nearby: Bear 6.2 mi · Elkton 6.8 mi · Wilmington 12 mi · Middletown 16 mi · West Chester 21 mi · Chester 24 mi · Aberdeen 25 mi · Springfield 29 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 Newark (39.6837°, -75.7497°, elevation 125 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).