Louisville weather in July

In July, Louisville sees average daytime highs of 87°F and overnight lows near 69°F, with 4.0 in of rain across 11.9 wet days and about 14.4 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 87°F through the month. The sky is clear or mostly clear about 33% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 14 h 36 min at the start of July to 14 hours by month's end. Set against the rest of the year, July is Louisville's 4th-clearest and 11th-windiest month. For the whole year in context, see Louisville's year-round climate.

Daytime high
87°
1st warmest
Overnight low
69°
12th coldest
Rainfall
4.0 in
11.9 wet days
Daylight
14 h 24 min
5:36 AM – 8:01 PM
Cloud cover
56%
4th clearest
Wind
5 mph
11th windiest
Solar energy
6.12 kWh/m²
Travel score
4.7
out of 10

Louisville is county seat of Jefferson County, Kentucky, United States.

Density
3,637/km²
people per km²
Founded
1778

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 87°F through the month.

A typical July day in Louisville reaches about 87°F in the afternoon and slips back to 69°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 80°F and 93°F. Set against its neighbours, July runs about 3°F warmer than June and on par with August.

60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18669
28669
38669
48669
58669
68669
78669
88669
98769
108769
118770
128770
138770
148770
158770
168770
178770
188770
198770
208770
218770
228770
238770
248770
258769
268769
278769
288769
298669
308669
318669

How July really feels in Louisville

Once humidity and wind are folded in, July averages 13 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
13
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Louisville weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan41° / 27°3.69.72.69.60.1
Feb46° / 29°3.39.22.610.51.1
Mar55° / 38°4.511.41.311.73.5
Apr67° / 48°5.0120.1135.7
May75° / 58°5.012.80146.3
Jun83° / 66°4.011.8014.65.5
Jul87° / 69°4.011.9014.44.7
Aug85° / 67°2.89.1013.55.3
Sep80° / 60°3.07.7012.36.9
Oct68° / 48°3.38.10116.6
Nov55° / 38°3.59.30.69.93.6
Dec45° / 31°4.010.12.29.41.0

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 20% of July, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25347
35248
45248
55248
65248
75248
85248
95248
105248
115248
125149
135149
145149
155149
165149
175149
185149
195149
205149
215248
225248
235347
245347
255446
265545
275644
285644
295743
305743
315842

Chance of precipitation in July

Any precipitation

Louisville gets around 4.0 in of rain over 11.9 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 40% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
236
336
436
536
636
736
836
936
1037
1137
1237
1338
1438
1538
1639
1739
1839
1940
2040
2140
2239
2339
2439
2538
2637
2737
2836
2935
3035
3134

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the oppressive band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 68% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
15121838260
25111838271
35111838271
45111837281
55111837291
64111837291
74111836301
84111836311
93101835321
103101834331
113101834341
123101833352
133101732372
14391731382
15291730392
16291729402
17291729412
18291728413
19291727413
202101827413
212101827413
222101827413
232101927403
242101927393
252112027383
262112028363
272112128352
282112229342
292122229322
302122330312
313122330302

Wind in July

Winds average 5 mph in July.

Across July, daily wind ranges from about 4 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 36 min at the start of July to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over July. Sunrise moves from 5:27 AM to 5:48 AM, and sunset from 8:05 PM to 7:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.65:278:05
214.65:288:05
314.65:288:05
414.65:298:05
514.65:298:05
614.65:308:05
714.65:308:05
814.65:318:04
914.55:328:04
1014.55:328:04
1114.55:338:03
1214.55:338:03
1314.55:348:03
1414.55:358:02
1514.45:358:02
1614.45:368:01
1714.45:378:01
1814.45:388:00
1914.45:388:00
2014.35:397:59
2114.35:407:58
2214.35:417:58
2314.35:417:57
2414.25:427:56
2514.25:437:55
2614.25:447:55
2714.25:457:54
2814.15:457:53
2914.15:467:52
3014.15:477:51
3114.05:487:50

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.12 kWh/m².

For context, solar energy here swings from a low near 1.78 kWh/m² to a high of 6.2 kWh/m² in June across the year — July's 6.12 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
86.2Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.0Intense
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Bright
306.0Bright
316.0Bright
Planning a trip in July

Hazard calendar for Louisville

In seasonPeak

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

Louisville 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 Louisville?

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

4.7
Sightseeing
7th-best month of the year
6.6
Beach & pool
3rd-best month of the year

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

What to pack for Louisville in July

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

In July, Louisville sees daytime highs around 87°F and nights near 69°F. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

UV index in Louisville 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 Louisville 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 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 23UV 9Dec 22UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5High
Apr6High
May7Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Louisville 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 Louisville is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1418 µg/m³Dec 118 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar11Good
Apr11Good
May15Moderate
Jun17Moderate
Jul19Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec8Good
Location & terrain

Where is Louisville?

Louisville sits at 38.3°N, 85.8°W, 466 ft above sea level, in United States. The nearest listed city is Jeffersonville, 1.9 mi away.

Topography around Louisville

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

Within 2 miles, the terrain around Louisville has only modest variations in elevation — a maximum elevation change of 154 ft around an average of 449 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 709 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 873 ft.

The land around Louisville is covered by artificial surfaces (59%) within 2 miles, trees (49%) and artificial surfaces (26%) within 10 miles, and trees (57%) and grassland (22%) within 50 miles.

2 miles
154 ft
10 miles
709 ft
50 miles
873 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Jeffersonville 1.9 mi · Clarksville 3.1 mi · New Albany 4.3 mi · Shively 5.0 mi · Saint Matthews 5.6 mi · Newburg 8.7 mi · Okolona 8.7 mi · Pleasure Ridge Park 9.3 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 Louisville (38.2542°, -85.7594°, elevation 466 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). 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).