Mishawaka weather in September

In September, Mishawaka sees average daytime highs of 74°F and overnight lows near 55°F, with 3.3 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 78°F in the first days to 69°F by the end. The sky is clear or mostly clear about 38% 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 Mishawaka's 1st-clearest and 9th-windiest month. For the whole year in context, see Mishawaka's year-round climate.

Daytime high
74°
4th warmest
Overnight low
55°
9th coldest
Rainfall
3.3 in
9.8 wet days
Daylight
12 h 18 min
6:31 AM – 6:47 PM
Cloud cover
53%
1st clearest
Wind
7 mph
9th windiest
Solar energy
4.37 kWh/m²
Travel score
6.8
out of 10

Mishawaka is city in St. Joseph County, Indiana, United States.

Density
1,036/km²
people per km²
Founded
1833

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 78°F in the first days to 69°F by the end.

A typical September day in Mishawaka reaches about 74°F in the afternoon and slips back to 55°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 63°F and 84°F. Set against its neighbours, September runs about 6°F cooler than August and about 12°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
17860
27860
37860
47859
57859
67759
77758
87758
97658
107657
117657
127556
137556
147456
157455
167455
177355
187354
197354
207253
217253
227153
237152
247152
257051
267051
276951
286950
296950
306849

How September really feels in Mishawaka

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.

Mishawaka 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
Jan32° / 20°2.710.99.69.30.0
Feb35° / 21°2.18.35.810.30.0
Mar46° / 30°2.810.93.811.71.3
Apr59° / 40°4.012.51.113.14.2
May69° / 51°4.513.1014.36.0
Jun79° / 61°4.211.80156.3
Jul82° / 65°4.111.7014.76.1
Aug80° / 63°3.810.9013.76.5
Sep74° / 55°3.39.8012.36.8
Oct61° / 44°3.310.50.210.95.0
Nov48° / 34°2.99.72.59.71.7
Dec37° / 26°2.410.46.290.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15644
25545
35545
45545
55545
65446
75545
85545
95446
105545
115446
125446
135347
145248
155347
165248
175248
185347
195248
205248
215248
225149
235149
245149
255050
265050
274951
285050
295050
305050

Chance of precipitation in September

Any precipitation

Mishawaka gets around 3.3 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 35% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
133
233
333
433
533
633
733
833
933
1033
1133
1233
1333
1433
1532
1632
1732
1832
1932
2032
2132
2232
2333
2433
2534
2634
2735
2835
2935
3035

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 50% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1232524226
2252623215
3262623205
4282622195
5302622184
6322721174
7342621163
8362621153
9382620143
10392520132
11412520122
12432419122
13452319112
14472318101
15492218101
1651221791
1753211691
1856201581
1958201480
2061191370
2162191270
2264181170
2366181060
2467171060
256917950
267116850
277116850
287315840
297415740
307614730

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
36calm
46calm
56calm
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 6:15 AM to 6:46 AM, and sunset from 7:14 PM to 6:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.06:157:14
212.96:167:12
312.96:177:10
412.86:187:09
512.86:197:07
612.76:207:05
712.76:217:03
812.76:227:02
912.66:237:00
1012.66:246:58
1112.56:256:56
1212.56:266:54
1312.46:286:53
1412.46:296:51
1512.36:306:49
1612.36:316:47
1712.26:326:45
1812.26:336:44
1912.16:346:42
2012.16:356:40
2112.06:366:38
2212.06:376:36
2311.96:386:35
2411.96:396:33
2511.86:406:31
2611.86:416:29
2711.76:426:27
2811.76:446:26
2911.76:456:24
3011.66:466:22

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.37 kWh/m².

For context, solar energy here swings from a low near 1.45 kWh/m² to a high of 6.37 kWh/m² in June across the year — September's 4.37 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.8Bright
54.8Bright
64.8Bright
74.7Bright
84.7Bright
94.6Bright
104.6Bright
114.5Bright
124.5Bright
134.4Bright
144.4Bright
154.4Bright
164.3Bright
174.3Bright
184.2Bright
194.2Bright
204.2Bright
214.1Bright
224.1Bright
234.0Bright
244.0Moderate
253.9Moderate
263.9Moderate
273.9Moderate
283.8Moderate
293.8Moderate
303.7Moderate
Planning a trip in September

Is September a good time to visit Mishawaka?

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
5.3
Beach & pool
4th-best month of the year

September is a reasonable time to visit Mishawaka for sightseeing.

What to pack for Mishawaka in September

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

In September, Mishawaka sees daytime highs around 74°F and nights near 55°F. Worth packing: light clothes and rain gear. About 10 days see rain.

light clothesrain gear

Sea temperature near Mishawaka in September

The nearest coast averages about 69°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 40 mi away) is warmest in August at about 73°F and coldest in March near 36°F.

It's comfortable for a long swim from Jul 11 to Sep 17 — about 2.3 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan38Bracing
Feb36Bracing
Mar36Bracing
Apr39Bracing
May46Bracing
Jun58Bracing
Jul70Refreshing
Aug73Refreshing
Sep69Refreshing
Oct59Bracing
Nov49Bracing
Dec43Bracing

UV index in Mishawaka 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 Mishawaka peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 20UV 9Dec 18UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Mishawaka 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 Mishawaka 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).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1316 µg/m³Oct 237 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar13Moderate
Apr13Moderate
May14Moderate
Jun15Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct7Good
Nov7Good
Dec8Good
Location & terrain

Where is Mishawaka?

Mishawaka sits at 41.7°N, 86.2°W, 722 ft above sea level, in United States. The nearest listed city is South Bend, 5.0 mi away.

Topography around Mishawaka

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

Within 2 miles, the terrain around Mishawaka has only modest variations in elevation — a maximum elevation change of 233 ft around an average of 741 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 318 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 614 ft.

The land around Mishawaka is covered by trees (39%), artificial surfaces (32%) and grassland (22%) within 2 miles, trees (37%) and cropland (32%) within 10 miles, and cropland (46%) and trees (30%) within 50 miles.

2 miles
233 ft
10 miles
318 ft
50 miles
614 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: South Bend 5.0 mi · Granger 6.8 mi · Elkhart 9.3 mi · Goshen 17 mi · La Porte 29 mi · Michigan City 38 mi · Portage 48 mi · Valparaiso 48 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 Mishawaka (41.662°, -86.1586°, elevation 722 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. 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).