Detroit weather in July

In July, Detroit sees average daytime highs of 81°F and overnight lows near 67°F, with 3.1 in of rain across 10.7 wet days and about 14.8 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 81°F through the month. The sky is clear or mostly clear about 33% of the time in July, and the air most often feels muggy.

Daylight stretches from about 15 h 06 min at the start of July to 14 h 24 min by month's end. Set against the rest of the year, July is Detroit's 2nd-clearest and 11th-windiest month. For the whole year in context, see Detroit's year-round climate.

Daytime high
81°
1st warmest
Overnight low
67°
12th coldest
Rainfall
3.1 in
10.7 wet days
Daylight
14 h 48 min
5:13 AM – 8:02 PM
Cloud cover
54%
2nd clearest
Wind
8 mph
11th windiest
Solar energy
6.4 kWh/m²
Travel score
6.4
out of 10

Detroit is city in and county seat of Wayne County, and largest city in State of Michigan, United States.

Density
1,745/km²
people per km²
Founded
1701

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 81°F through the month.

A typical July day in Detroit reaches about 81°F in the afternoon and slips back to 67°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 89°F. Set against its neighbours, July runs about 4°F warmer than June and about 2°F warmer than August.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18166
28166
38166
48166
58166
68166
78167
88167
98267
108267
118267
128267
138267
148267
158267
168267
178267
188267
198267
208267
218267
228267
238267
248267
258167
268167
278167
288167
298167
308167
318167

How July really feels in Detroit

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.

Detroit weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan31° / 20°2.510.25.99.30.0
Feb33° / 21°2.18.35.410.30.0
Mar43° / 29°2.69.63.811.60.6
Apr55° / 41°3.612113.13.4
May67° / 52°3.512.8014.45.7
Jun77° / 63°3.410.90156.6
Jul81° / 67°3.110.7014.86.4
Aug79° / 65°3.09.6013.76.8
Sep72° / 58°2.78.3012.37.0
Oct60° / 46°2.78.9010.84.8
Nov47° / 36°2.791.59.61.5
Dec36° / 27°2.59.14.190.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% 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 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35842
45941
55842
65842
75842
85743
95743
105743
115743
125644
135644
145545
155545
165545
175545
185446
195446
205446
215446
225545
235545
245545
255545
265545
275545
285545
295545
305644
315644

Chance of precipitation in July

Any precipitation

Detroit gets around 3.1 in of rain over 10.7 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 35% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
234
333
433
532
632
732
832
932
1033
1133
1234
1334
1435
1535
1636
1736
1836
1936
2037
2137
2237
2337
2437
2536
2636
2736
2835
2935
3034
3134

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 27% of days. Sticky, muggy-or-worse air turns up on roughly 40% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11724242780
21724242690
31724252590
417242525100
516242524100
616242624110
716232624110
815232624110
915232624120
1014232724120
1113222724131
1213222725131
1312212725131
1412212726131
1511212726141
1611202727141
1711202727141
1811202727141
1910202728141
2010202728141
2110202728141
229202729141
239212729141
249212629131
259222629131
269222629131
279232629121
289242629121
299242629121
309242529111
3110252529111

Wind in July

Winds average 8 mph in July.

Across July, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
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
317light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 06 min at the start of July to 14 h 24 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 5:04 AM to 5:27 AM, and sunset from 8:07 PM to 7:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.15:048:07
215.15:048:07
315.05:058:07
415.05:058:07
515.05:068:07
615.05:068:07
715.05:078:06
815.05:088:06
915.05:088:06
1014.95:098:05
1114.95:108:05
1214.95:108:04
1314.95:118:04
1414.95:128:03
1514.85:138:03
1614.85:138:02
1714.85:148:01
1814.85:158:01
1914.75:168:00
2014.75:177:59
2114.75:187:59
2214.75:197:58
2314.65:207:57
2414.65:217:56
2514.65:217:55
2614.55:227:54
2714.55:237:53
2814.55:247:52
2914.45:257:51
3014.45:267:50
3114.45:277:49

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.4 kWh/m².

For context, solar energy here swings from a low near 1.48 kWh/m² to a high of 6.48 kWh/m² in June across the year — July's 6.4 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.6Intense
106.6Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.4Intense
166.4Intense
176.4Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.0Intense
316.0Intense
Planning a trip in July

Is July a good time to visit Detroit?

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

6.4
Sightseeing
4th-best month of the year
6.7
Beach & pool
1st-best month of the year

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

What to pack for Detroit in July

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

In July, Detroit sees daytime highs around 81°F and nights near 67°F. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

Sea temperature near Detroit in July

The nearest coast averages about 72°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 9 mi away) is warmest in August at about 73°F and coldest in February near 33°F.

It's comfortable for a long swim from Jul 2 to Sep 15 — about 2.5 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan34Bracing
Feb33Bracing
Mar34Bracing
Apr41Bracing
May52Bracing
Jun64Cool
Jul72Refreshing
Aug73Refreshing
Sep68Refreshing
Oct57Bracing
Nov47Bracing
Dec39Bracing

UV index in Detroit in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Detroit peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 highHighModerateLowJun 20UV 9Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr6High
May7High
Jun9Very high
Jul8Very high
Aug7High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Detroit 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 Detroit is worst in July — around 16 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1216 µg/m³Oct 239 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar14Moderate
Apr14Moderate
May15Moderate
Jun16Moderate
Jul16Moderate
Aug15Moderate
Sep12Moderate
Oct9Good
Nov9Good
Dec10Good
Location & terrain

Where is Detroit?

Detroit sits at 42.3°N, 83.0°W, 600 ft above sea level, in United States. The nearest listed city is Windsor, 2.5 mi away.

Topography around Detroit

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

Within 2 miles, the terrain around Detroit has only modest variations in elevation — a maximum elevation change of 187 ft around an average of 604 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 200 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 915 ft.

The land around Detroit is covered by artificial surfaces (64%) within 2 miles, artificial surfaces (44%) and trees (24%) within 10 miles, and trees (28%), water (27%) and cropland (26%) within 50 miles.

2 miles
187 ft
10 miles
200 ft
50 miles
915 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
July weather nearby: Windsor 2.5 mi · Hamtramck 4.3 mi · LaSalle 6.2 mi · Dearborn 6.8 mi · Tecumseh 8.1 mi · Lincoln Park 8.7 mi · Hazel Park 9.3 mi · Wyandotte 9.9 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 Detroit (42.3314°, -83.0457°, elevation 600 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. 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).