Kokomo weather in September

In September, Kokomo sees average daytime highs of 76°F and overnight lows near 56°F, with 2.6 in of rain across 8.5 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 80°F in the first days to 72°F by the end. The sky is clear or mostly clear about 40% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Kokomo's 1st-clearest and 9th-windiest month. For the whole year in context, see Kokomo's year-round climate.

Daytime high
76°
4th warmest
Overnight low
56°
9th coldest
Rainfall
2.6 in
8.5 wet days
Daylight
12 h 18 min
6:31 AM – 6:47 PM
Cloud cover
50%
1st clearest
Wind
7 mph
9th windiest
Solar energy
4.54 kWh/m²
Travel score
7.1
out of 10

Kokomo is city in Indiana, United States.

Density
1,207/km²
people per km²
Founded
1855

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 80°F in the first days to 72°F by the end.

A typical September day in Kokomo reaches about 76°F in the afternoon and slips back to 56°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 66°F and 87°F. Set against its neighbours, September runs about 5°F cooler than August and about 12°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
18162
28062
38061
48061
58060
68060
77960
87959
97959
107859
117858
127858
137757
147757
157757
167656
177656
187655
197555
207555
217554
227454
237453
247353
257353
267352
277252
287252
297251
307151

How September really feels in Kokomo

Once humidity and wind are folded in, September 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

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Kokomo weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan34° / 21°2.99.559.40.0
Feb38° / 23°2.48.54.510.40.0
Mar50° / 32°3.310.52.511.72.1
Apr62° / 43°4.111.60.5135.0
May72° / 53°4.313.9014.26.0
Jun80° / 63°4.312.1014.86.2
Jul83° / 66°3.411.3014.65.8
Aug82° / 64°3.39.4013.66.6
Sep76° / 56°2.68.5012.37.1
Oct64° / 45°3.19.20.110.95.8
Nov50° / 35°3.291.29.72.4
Dec39° / 26°2.79.93.99.20.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15842
25842
35842
45842
55941
65941
75941
85941
95941
105842
115842
125842
135743
145743
155743
165644
175644
185644
195545
205644
215545
225545
235545
245545
255545
265545
275446
285446
295446
305446

Chance of precipitation in September

Any precipitation

Kokomo gets around 2.6 in of rain over 8.5 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
129
229
330
429
529
629
729
828
928
1028
1128
1228
1328
1428
1528
1628
1728
1828
1929
2029
2129
2229
2329
2429
2529
2629
2729
2829
2929
3029

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 49% of days. Sticky, muggy-or-worse air turns up on roughly 14% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1232223257
2252222256
3272321246
4282321235
5302320224
6322420213
7342420203
8362419192
9382419172
10392419162
11412319151
12432319141
13452319131
14462218131
15482218121
16502118111
17532017100
1855201690
1957191680
2058191580
2161181470
2263171370
2364171270
2467161160
2567161160
2668161060
2770151050
2871141050
297214950
307313950

Wind in September

Winds average 7 mph in September.

Across September, 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.

051015151015202530
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157light 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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 6:16 AM to 6:45 AM, and sunset from 7:12 PM to 6:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:167:12
212.96:177:11
312.96:187:09
412.86:197:07
512.86:207:06
612.76:217:04
712.76:227:02
812.66:237:01
912.66:246:59
1012.56:256:57
1112.56:266:55
1212.46:276:54
1312.46:286:52
1412.46:296:50
1512.36:306:49
1612.36:316:47
1712.26:326:45
1812.26:336:43
1912.16:346:42
2012.16:356:40
2112.06:366:38
2212.06:376:36
2311.96:386:35
2411.96:396:33
2511.96:406:31
2611.86:416:29
2711.86:426:28
2811.76:436:26
2911.76:446:24
3011.66:456:22

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.54 kWh/m².

For context, solar energy here swings from a low near 1.69 kWh/m² to a high of 6.33 kWh/m² in July across the year — September's 4.54 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.0Bright
35.0Bright
45.0Bright
54.9Bright
64.9Bright
74.9Bright
84.8Bright
94.8Bright
104.7Bright
114.7Bright
124.7Bright
134.6Bright
144.6Bright
154.5Bright
164.5Bright
174.5Bright
184.4Bright
194.4Bright
204.3Bright
214.3Bright
224.3Bright
234.2Bright
244.2Bright
254.1Bright
264.1Bright
274.1Bright
284.0Bright
294.0Moderate
303.9Moderate
Planning a trip in September

Is September a good time to visit Kokomo?

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

7.1
Sightseeing
1st-best month of the year
6.1
Beach & pool
4th-best month of the year

September is one of the better times to visit Kokomo for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Kokomo in September

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

In September, Kokomo sees daytime highs around 76°F and nights near 56°F. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Kokomo in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kokomo peaks around June 21 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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 21UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Kokomo in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Kokomo is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 7 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
May13Moderate
Jun15Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct7Good
Nov8Good
Dec9Good
Location & terrain

Where is Kokomo?

Kokomo sits at 40.5°N, 86.1°W, 810 ft above sea level, in United States. The nearest listed city is Logansport, 22 mi away.

Topography around Kokomo

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

Within 2 miles, the terrain around Kokomo has only modest variations in elevation — a maximum elevation change of 148 ft around an average of 817 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 302 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 725 ft.

The land around Kokomo is covered by artificial surfaces (44%), trees (25%) and grassland (22%) within 2 miles, cropland (73%) within 10 miles, and cropland (74%) within 50 miles.

2 miles
148 ft
10 miles
302 ft
50 miles
725 ft
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Logansport 22 mi · Frankfort 24 mi · Marion 25 mi · Westfield 30 mi · Noblesville 31 mi · Lebanon 35 mi · Carmel 35 mi · Anderson 35 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 Kokomo (40.4864°, -86.1336°, elevation 810 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).