Detroit weather in July

July in Detroit: hot, rainy — a great time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Detroit🇺🇸 United States · Great Lakes & Midwest · City74
  1. 39Jan
  2. 49Feb
  3. 62Mar
  4. 72Apr
  5. 87May
  6. 84Jun
  7. 74Jul
  8. 78Aug
  9. 90Sep
  10. 77Oct
  11. 60Nov
  12. 46Dec

#6 of 12 months in Detroit · #834 of 1413 destinations to visit in July · comfort 74/100 (tier B)

Days
29°C
Nights
20°C
Wet days
9
Sun
12 h
Humidity
70%
Daylight
15 h
Detroit, United States
Photo: @coldbeer · Pexels

Traveller notes on Detroit in July

Other months in Detroit

Regulars call this a genuinely good pick within the city's shoulder season, specifically for sports fans since baseball, hockey, basketball and football overlap here this time of year. Our row backs the cooling, changeable read, 17.8C over 8.8C nights feeling 6C, with 77.4mm of rain across 9.2 days and a real 22.6 kph wind. Regulars are consistent this month is genuinely variable enough that checking the forecast starting about a week out is worth doing, since a run of highs in the low 50s Fahrenheit with lows still above freezing can shift meaningfully within that window. The record: humidity 72 percent, 7.5 hours of sun and one of the cleanest air readings in this project, AQI 37.
GoodMonthForBaseballHockeyAndFootball · October · 1 month ago · Read more on Tripadvisor ↗
Regulars call this a typically hot, humid summer month, low-to-mid 80s Fahrenheit by day and rarely much cooler, though occasionally pushing into the 90s - and specifically warn that a passing storm can drop the temperature by as much as 30 Fahrenheit degrees in half an hour, a swing worth packing a light jacket for even on an otherwise hot day. Our row backs the heat, 28.3C reading as a real 30C, over 19.2C nights, with 123.6mm of rain across 8.5 days - a real, humid-summer total rather than the occasional shower. Regulars pair the jacket advice with an umbrella, treating a sudden downpour as routine rather than exceptional for the season. The record: humidity 71 percent, 11.6 hours of sun, a 17.9 kph wind and AQI 52.
ThirtyDegreesInThirtyMinutesIfAStormHits · August · 1 month ago · Read more on Tripadvisor ↗
June opens the stretch regulars recommend here, June through September, and it is the month the city's outdoor half becomes usable - the riverwalk, Belle Isle, the market, a ballgame. Our row gives 27.1C reading as 28C over 16.8C nights at 67 percent humidity, which is warm without the August weight. Rain is 88.6mm across 7.7 days, so afternoon storms rather than drizzle, and a 20.5 kph wind keeps the riverfront fresher than the inland numbers suggest. Anyone continuing north should know the boards are clear that early June is still chilly past mid-Michigan. The record: a dew point of 13.4C, 12.1 hours of sun inside 15.2 of daylight, and AQI 66.
TheSeasonOpensHere · June · 1 month ago · Read more on Tripadvisor ↗
May in Detroit is the month regulars describe as either lovely or cool and rainy, with no way to know in advance - April and May are the two they call genuinely unpredictable in Michigan, and the advice that follows is to keep a plan that works indoors. One regular's figure of a mid-50s to 60F daily high reads low against our row's 21.8C average, and likely describes the start of the month rather than the end of it. What May reliably brings is baseball: the season is underway and a game at Comerica Park is the thing they suggest. It is also the wet end of spring here, 92.3mm across 10.7 days. The record: 11C nights that feel like 8C, a 21.5 kph wind and 10.3 hours of sun.
LovelyOrCoolAndRainy · May · 1 month ago · Read more on Tripadvisor ↗

Year-round notes are on Detroit's overview. Add your own note from Detroit's card on the map.

Detroit climate normals — July

Daytime high29°C / 85°F🥵 hot
Nighttime low20°C / 68°F
Feels like (high)32°C / 90°F
Rainfall105 mm / 4.1 in🌧 rainy
Rainy days9 days
Humidity70%💧 humid
Dew point17°C / 62°F
Sunshine12 h/day
Daylight14.9 h
Wind18 km/h / 11 mph
Air quality (US AQI)59🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Detroit in July

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

BusySummer break in United States, school holidays in 2 of the markets that fill it(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Detroit's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherDetroit's best weather comes in May, June and September — separate windows, not one continuous season.

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Best weatherFair weatherToughest weather

What's on in Detroit in July

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Riverfront and Belle Isle season

    1 Jun – 15 Sep · usuallySummer season opens

    The riverwalk, the Belle Isle beach and the pop-up bars along the Dequindre Cut only exist for one season, and Detroit uses all of it. Everything closes again by October. Source ↗

What's on around the world in July →

Nearby, and something's on

Within 300 km of Detroit — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Detroit?

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Detroit in July — FAQ

Is July a good time to visit Detroit?
July in Detroit: hot, rainy — a great time to visit. It ranks #6 of 12 months for Detroit on SeasonMap's comfort score (74/100).
What is the weather like in Detroit in July?
In July, Detroit averages a daily high of 29.3°C and a low of 19.9°C, with about 104.7 mm of rain over roughly 9.4 rainy days.
What is the air quality in Detroit in July?
Detroit has a mean US Air Quality Index of about 59 in July.

Within 300 km: Columbus' Red, White and Boom on 3 Jul, and Cleveland's Lakefront season on 1 Jun – 10 Sep.