Indianapolis weather in July

In July, Indianapolis sees average daytime highs of 84°F and overnight lows near 67°F, with 3.6 in of rain across 11.5 wet days and about 14.5 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 84°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 48 min at the start of July to 14 h 12 min by month's end. Set against the rest of the year, July is Indianapolis's 4th-clearest and 11th-windiest month. For the whole year in context, see Indianapolis's year-round climate.

Daytime high
84°
1st warmest
Overnight low
67°
12th coldest
Rainfall
3.6 in
11.5 wet days
Daylight
14 h 36 min
5:34 AM – 8:07 PM
Cloud cover
55%
4th clearest
Wind
6 mph
11th windiest
Solar energy
6.26 kWh/m²
Travel score
5.4
out of 10

Indianapolis is capital city of the U.S. state of Indiana and seat of Marion County.

Density
931/km²
people per km²
Founded
1821

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 84°F through the month.

A typical July day in Indianapolis reaches about 84°F in the afternoon and slips back to 67°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 77°F and 91°F. Set against its neighbours, July runs about 3°F warmer than June and on par with August.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18366
28367
38367
48367
58467
68467
78467
88467
98467
108467
118467
128467
138467
148467
158467
168467
178467
188467
198467
208467
218467
228467
238467
248467
258467
268467
278467
288467
298467
308367
318366

How July really feels in Indianapolis

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.

Indianapolis weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan36° / 22°3.29.24.29.50.0
Feb40° / 25°2.68.5410.40.2
Mar51° / 33°3.811.1211.72.4
Apr63° / 44°4.7120.4135.1
May72° / 55°4.813.4014.26.1
Jun81° / 64°4.211.8014.86.0
Jul84° / 67°3.611.5014.55.4
Aug83° / 65°2.89013.66.2
Sep77° / 57°2.87.6012.37.2
Oct64° / 46°3.38.50.110.96.0
Nov51° / 35°3.48.80.89.82.5
Dec40° / 27°3.19.83.59.20.1

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 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35545
45545
55644
65644
75644
85644
95743
105644
115644
125644
135644
145545
155446
165446
175446
185347
195347
205347
215248
225248
235248
245347
255446
265446
275545
285545
295545
305644
315743

Chance of precipitation in July

Any precipitation

Indianapolis gets around 3.6 in of rain over 11.5 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 37% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
336
436
536
636
736
836
936
1036
1137
1237
1337
1437
1537
1637
1738
1838
1938
2038
2138
2238
2338
2438
2537
2637
2736
2835
2934
3034
3133

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 31% 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 (%)Miserable (%)
112162435140
211162434140
311162334150
411172333160
511172333160
610172333170
710172332170
89172332180
99172332190
108172233190
118172232200
127172232210
137172232210
147172132221
156172132231
166172132241
176172131241
186162131251
196162130251
206162130261
216162230261
226162229261
236172229261
246172228261
256182328251
266182327250
276192427240
287192426230
297202526220
307212526210
318212526210

Wind in July

Winds average 6 mph in July.

Across July, daily wind ranges from about 6 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
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 48 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 36 minutes over July. Sunrise moves from 5:24 AM to 5:46 AM, and sunset from 8:12 PM to 7:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.85:248:12
214.85:258:11
314.85:258:11
414.85:268:11
514.75:268:11
614.75:278:11
714.75:278:11
814.75:288:10
914.75:298:10
1014.75:298:10
1114.75:308:09
1214.65:318:09
1314.65:318:08
1414.65:328:08
1514.65:338:08
1614.65:348:07
1714.55:348:06
1814.55:358:06
1914.55:368:05
2014.55:378:05
2114.45:378:04
2214.45:388:03
2314.45:398:02
2414.45:408:02
2514.35:418:01
2614.35:428:00
2714.35:437:59
2814.25:437:58
2914.25:447:57
3014.25:457:56
3114.25:467:55

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.26 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.7 kWh/m² to a high of 6.26 kWh/m² in June across the year — July's 6.26 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
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.0Intense
316.0Intense
Planning a trip in July

Is July a good time to visit Indianapolis?

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

5.4
Sightseeing
6th-best month of the year
6.9
Beach & pool
2nd-best month of the year

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

What to pack for Indianapolis in July

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

In July, Indianapolis sees daytime highs around 84°F and nights near 67°F. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

UV index in Indianapolis 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 Indianapolis peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 23UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Indianapolis 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 Indianapolis is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodJul 1416 µg/m³Oct 218 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Moderate
Mar12Moderate
Apr12Good
May14Moderate
Jun16Moderate
Jul17Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Indianapolis?

Indianapolis sits at 39.8°N, 86.2°W, 715 ft above sea level, in United States. The nearest listed city is Broad Ripple, 6.8 mi away.

Topography around Indianapolis

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

Within 2 miles, the terrain around Indianapolis has only modest variations in elevation — a maximum elevation change of 128 ft around an average of 719 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 515 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 761 ft.

The land around Indianapolis is covered by artificial surfaces (71%) within 2 miles, trees (43%), artificial surfaces (30%) and grassland (20%) within 10 miles, and cropland (58%) and trees (29%) within 50 miles.

2 miles
128 ft
10 miles
515 ft
50 miles
761 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Broad Ripple 6.8 mi · Lawrence 8.7 mi · Greenwood 11 mi · Fairfield Heights 12 mi · Avon 13 mi · Plainfield 14 mi · Brownsburg 14 mi · Zionsville 14 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 Indianapolis (39.7684°, -86.158°, elevation 715 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. 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).