Kentwood weather in September

In September, Kentwood sees average daytime highs of 72°F and overnight lows near 54°F, with 3.1 in of rain across 9.8 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 76°F in the first days to 67°F by the end. The sky is clear or mostly clear about 37% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Kentwood's 2nd-clearest and 9th-windiest month. For the whole year in context, see Kentwood's year-round climate.

Daytime high
72°
4th warmest
Overnight low
54°
9th coldest
Rainfall
3.1 in
9.8 wet days
Daylight
12 h 18 min
6:28 AM – 6:46 PM
Cloud cover
53%
2nd clearest
Wind
7 mph
9th windiest
Solar energy
4.36 kWh/m²
Travel score
6.8
out of 10

Kentwood is city in Kent County, Michigan, United States.

Density
946/km²
people per km²
Founded
1967

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 76°F in the first days to 67°F by the end.

A typical September day in Kentwood reaches about 72°F in the afternoon and slips back to 54°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 62°F and 82°F. Set against its neighbours, September runs about 7°F cooler than August and about 13°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
17759
27758
37658
47658
57658
67657
77557
87557
97456
107456
117456
127455
137355
147355
157354
167254
177253
187153
197153
207152
217052
227051
236951
246951
256850
266850
276749
286749
296749
306648

How September really feels in Kentwood

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.

Kentwood weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan31° / 19°2.611.110.99.20.0
Feb33° / 20°2.08.26.910.20.0
Mar44° / 28°2.59.9411.60.9
Apr57° / 38°4.012.41.613.13.7
May68° / 49°4.412.2014.45.9
Jun77° / 59°3.911.6015.16.6
Jul81° / 63°3.911.1014.86.5
Aug79° / 61°3.810.3013.86.7
Sep72° / 54°3.19.8012.36.8
Oct59° / 43°3.411.40.210.84.5
Nov46° / 34°2.710.22.79.51.3
Dec36° / 26°2.4118.68.90.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15842
25842
35842
45842
55842
65842
75743
85743
95644
105644
115545
125545
135446
145545
155446
165446
175446
185347
195347
205347
215347
225347
235248
245248
255149
265149
275149
285149
295149
305149

Chance of precipitation in September

Any precipitation

Kentwood gets around 3.1 in of rain over 9.8 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 33% and peaks near 38% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
130
230
330
430
530
630
730
830
930
1030
1130
1231
1331
1431
1531
1632
1732
1832
1933
2033
2134
2234
2335
2436
2537
2637
2738
2838
2938
3038

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 55% of days. Sticky, muggy-or-worse air turns up on roughly 10% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1312520185
2332620175
3342619164
4362619154
5382618144
6392618143
7412518133
8422518123
9442518122
10452418112
11472417102
12482417101
1350231791
1451231691
1553221681
1655221580
1757211470
1858211470
1960201370
2062201260
2164191160
2267181050
236818950
247117840
257216840
267316740
277615630
287714630
297714630
308013520

Wind in September

Winds average 7 mph in September.

Across September, daily wind ranges from about 6 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
16calm
26calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours 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 84 minutes over September. Sunrise moves from 6:12 AM to 6:44 AM, and sunset from 7:13 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.06:127:13
213.06:137:11
312.96:147:09
412.96:157:08
512.86:167:06
612.86:177:04
712.76:187:02
812.76:197:00
912.66:206:59
1012.66:226:57
1112.56:236:55
1212.56:246:53
1312.46:256:51
1412.46:266:49
1512.36:276:47
1612.36:286:46
1712.26:296:44
1812.26:316:42
1912.16:326:40
2012.16:336:38
2112.06:346:36
2212.06:356:34
2311.96:366:32
2411.96:376:31
2511.86:386:29
2611.86:406:27
2711.76:416:25
2811.76:426:23
2911.66:436:21
3011.66:446:20

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.36 kWh/m².

For context, solar energy here swings from a low near 1.33 kWh/m² to a high of 6.54 kWh/m² in June across the year — September's 4.36 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
15.0Bright
24.9Bright
34.9Bright
44.9Bright
54.8Bright
64.8Bright
74.7Bright
84.7Bright
94.6Bright
104.6Bright
114.5Bright
124.5Bright
134.4Bright
144.4Bright
154.3Bright
164.3Bright
174.3Bright
184.2Bright
194.2Bright
204.1Bright
214.1Bright
224.0Bright
234.0Moderate
243.9Moderate
253.9Moderate
263.9Moderate
273.8Moderate
283.8Moderate
293.7Moderate
303.7Moderate
Planning a trip in September

Is September a good time to visit Kentwood?

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

6.8
Sightseeing
1st-best month of the year
4.8
Beach & pool
4th-best month of the year

September is a reasonable time to visit Kentwood for sightseeing.

What to pack for Kentwood in September

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

In September, Kentwood sees daytime highs around 72°F and nights near 54°F. Worth packing: light clothes and rain gear. About 10 days see rain.

light clothesrain gear

Sea temperature near Kentwood in September

The nearest coast averages about 67°F in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 37 mi away) is warmest in August at about 71°F and coldest in March near 36°F.

It's comfortable for a long swim from Jul 20 to Sep 8 — about 1.7 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan39Bracing
Feb37Bracing
Mar36Bracing
Apr38Bracing
May44Bracing
Jun56Bracing
Jul68Cool
Aug71Refreshing
Sep67Cool
Oct58Bracing
Nov49Bracing
Dec43Bracing

UV index in Kentwood 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 Kentwood peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 21UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr5High
May7Very high
Jun9Very high
Jul9Very high
Aug7Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Kentwood?

Kentwood sits at 42.9°N, 85.6°W, 689 ft above sea level, in United States. The nearest listed city is Wyoming, 4.3 mi away.

Topography around Kentwood

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

Within 2 miles, the terrain around Kentwood has only modest variations in elevation — a maximum elevation change of 177 ft around an average of 715 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 476 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 600 ft.

The land around Kentwood is covered by artificial surfaces (45%) and trees (37%) within 2 miles, trees (43%) and grassland (24%) within 10 miles, and trees (46%) and cropland (26%) within 50 miles.

2 miles
177 ft
10 miles
476 ft
50 miles
600 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Wyoming 4.3 mi · Grand Rapids 6.8 mi · Grandville 6.8 mi · Jenison 8.1 mi · Forest Hills 9.9 mi · Walker 11 mi · Allendale 17 mi · Holland 24 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 Kentwood (42.8695°, -85.6448°, elevation 689 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).