Lincoln weather in September

In September, Lincoln sees average daytime highs of 78°F and overnight lows near 56°F, with 2.8 in of rain across 7.9 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 83°F in the first days to 73°F by the end. The sky is clear or mostly clear about 55% 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 Lincoln's 1st-clearest and 7th-windiest month. For the whole year in context, see Lincoln's year-round climate.

Daytime high
78°
4th warmest
Overnight low
56°
9th coldest
Rainfall
2.8 in
7.9 wet days
Daylight
12 h 18 min
6:13 AM – 6:29 PM
Cloud cover
39%
1st clearest
Wind
9 mph
7th windiest
Solar energy
4.87 kWh/m²
Travel score
7.2
out of 10

Lincoln is capital city of the U.S. state of Nebraska and seat of Lancaster County.

Density
1,149/km²
people per km²
Founded
1856

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 83°F in the first days to 73°F by the end.

A typical September day in Lincoln reaches about 78°F in the afternoon and slips back to 56°F overnight — a 22°F spread between the day's warmth and the night's chill. On most days the high lands between 66°F and 90°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)
18362
28362
38362
48261
58261
68260
78160
88159
98159
108059
118058
127958
137957
147957
157856
167856
177756
187755
197755
207654
217654
227653
237553
247553
257452
267452
277451
287351
297350
307350

How September really feels in Lincoln

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.

Lincoln weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan35° / 17°1.04.849.40.0
Feb39° / 20°1.25.13.410.40.1
Mar52° / 31°2.17.42.211.72.8
Apr63° / 41°3.610.21.113.15.4
May73° / 53°5.1120.114.26.4
Jun83° / 64°4.211014.95.7
Jul87° / 68°3.59.5014.64.8
Aug85° / 65°3.19.1013.65.6
Sep78° / 56°2.87.9012.37.2
Oct65° / 43°2.57.30.510.96.4
Nov51° / 31°1.65.11.59.72.8
Dec38° / 21°1.34.73.59.10.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 32%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17030
27030
37030
47030
57129
67030
77030
87030
96931
106931
116931
126733
136733
146634
156634
166634
176634
186634
196634
206634
216832
226832
236832
246832
256832
266733
276733
286733
296733
306733

Chance of precipitation in September

Any precipitation

Lincoln gets around 2.8 in of rain over 7.9 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 27% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
126
226
326
426
526
627
727
827
927
1027
1128
1228
1328
1429
1529
1629
1729
1829
1928
2028
2127
2227
2326
2426
2526
2625
2725
2825
2925
3025

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 51% of days. Sticky, muggy-or-worse air turns up on roughly 13% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1211929282
2232028262
3262028242
4282127232
5302126211
6332225191
7352224181
8372223171
9392223161
10412222151
11432221141
12452120131
13472119130
14482119120
15512018110
16522017110
17541917100
18561816100
1958181590
2060171490
2162161480
2265151370
2366151270
2469141160
2571131060
2672131050
277512940
287612840
297712830
307911730

Wind in September

Winds average 9 mph in September.

Across September, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
1410light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light 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 5:58 AM to 6:27 AM, and sunset from 6:55 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:586:55
212.95:596:53
312.96:006:52
412.86:016:50
512.86:026:48
612.76:036:46
712.76:046:45
812.66:056:43
912.66:066:41
1012.56:076:40
1112.56:086:38
1212.56:096:36
1312.46:106:34
1412.46:116:33
1512.36:126:31
1612.36:136:29
1712.26:146:27
1812.26:156:25
1912.16:166:24
2012.16:176:22
2112.06:186:20
2212.06:196:18
2311.96:206:17
2411.96:216:15
2511.86:226:13
2611.86:236:11
2711.86:246:10
2811.76:256:08
2911.76:266:06
3011.66:276:05

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.87 kWh/m².

For context, solar energy here swings from a low near 2.02 kWh/m² to a high of 6.7 kWh/m² in June across the year — September's 4.87 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.3Bright
55.3Bright
65.2Bright
75.2Bright
85.2Bright
95.1Bright
105.1Bright
115.0Bright
125.0Bright
134.9Bright
144.9Bright
154.8Bright
164.8Bright
174.8Bright
184.7Bright
194.7Bright
204.6Bright
214.6Bright
224.6Bright
234.5Bright
244.5Bright
254.5Bright
264.4Bright
274.4Bright
284.3Bright
294.3Bright
304.2Bright
Planning a trip in September

Hazard calendar for Lincoln

In seasonPeak

In September, Lincoln sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Lincoln's rainy season runs April–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Lincoln?

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

7.2
Sightseeing
1st-best month of the year
6.7
Beach & pool
4th-best month of the year

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

What to pack for Lincoln in September

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

In September, Lincoln sees daytime highs around 78°F and nights near 56°F. Worth packing: light clothes and sun protection. About 8 days see rain.

light clothessun protection

UV index in Lincoln in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lincoln peaks around June 22 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 highHighModerateJun 22UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May7High
Jun9Very high
Jul9Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low
Location & terrain

Where is Lincoln?

Lincoln sits at 40.8°N, 96.7°W, 1,204 ft above sea level, in United States. The nearest listed city is Papillion, 41 mi away.

Topography around Lincoln

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

Within 2 miles, the terrain around Lincoln has only modest variations in elevation — a maximum elevation change of 190 ft around an average of 1,234 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 387 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 810 ft.

The land around Lincoln is covered by trees (56%) and artificial surfaces (35%) within 2 miles, cropland (41%) and grassland (27%) within 10 miles, and cropland (74%) within 50 miles.

2 miles
190 ft
10 miles
387 ft
50 miles
810 ft
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Papillion 41 mi · La Vista 42 mi · Fremont 45 mi · Bellevue 47 mi · Omaha 49 mi · Council Bluffs 53 mi · Columbus 57 mi · Grand Island 88 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 Lincoln (40.8°, -96.667°, elevation 1,204 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).