Auburn weather in September

In September, Auburn sees average daytime highs of 85°F and overnight lows near 67°F, with 3.1 in of rain across 8.7 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 88°F in the first days to 82°F by the end. The sky is clear or mostly clear about 38% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 42 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Auburn's 4th-clearest and 9th-windiest month. For the whole year in context, see Auburn's year-round climate.

Daytime high
85°
4th warmest
Overnight low
67°
9th coldest
Rainfall
3.1 in
8.7 wet days
Daylight
12 h 12 min
5:30 AM – 5:42 PM
Cloud cover
52%
4th clearest
Wind
5 mph
9th windiest
Solar energy
4.8 kWh/m²
Travel score
5.4
out of 10

Auburn is city in Lee County, Alabama, USA.

Density
405/km²
people per km²
Founded
1836

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 88°F in the first days to 82°F by the end.

A typical September day in Auburn reaches about 85°F in the afternoon and slips back to 67°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 78°F and 92°F. Set against its neighbours, September runs about 4°F cooler than August and about 9°F warmer than October.

50°60°70°80°90°151015202530
Avg high (°F)Avg low (°F)
18870
28870
38870
48869
58869
68769
78769
88769
98768
108768
118768
128768
138667
148667
158667
168667
178566
188566
198566
208565
218465
228465
238365
248364
258364
268363
278263
288263
298262
308162

How September really feels in Auburn

Once humidity and wind are folded in, September averages 8 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
8
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

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

Auburn weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan57° / 38°4.41010.14.0
Feb61° / 41°4.69.610.85.0
Mar68° / 47°4.59.511.86.4
Apr75° / 54°3.68.412.87.2
May83° / 62°3.0913.76.1
Jun88° / 70°3.71314.14.1
Jul90° / 73°4.915.713.93.4
Aug89° / 72°3.913.813.23.7
Sep85° / 67°3.18.712.25.4
Oct76° / 55°2.96.711.27.5
Nov66° / 45°3.97.910.36.6
Dec59° / 40°4.69.99.94.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 44%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15347
25347
35446
45545
55446
65545
75644
85644
95743
105743
115842
125842
135842
145842
155842
165743
175644
185644
195545
205644
215644
225644
235644
245644
255743
265743
275743
285842
295842
305842

Chance of precipitation in September

Any precipitation

Auburn gets around 3.1 in of rain over 8.7 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 36% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
136
235
334
433
532
631
730
829
928
1028
1127
1227
1327
1427
1527
1628
1728
1828
1929
2029
2129
2229
2329
2428
2528
2627
2727
2826
2926
3025

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 56% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
127123939
228133938
328133937
439143935
5310153834
6310163733
7411173632
8412183531
9413193430
10514203329
11515203228
12515213127
13616223026
14617223026
15617232925
16717232924
17717242923
18817242922
19917243021
201017243019
211117233018
221317233017
231417233016
241617223015
251817222914
261917222913
272117222812
282318212711
292418212710
302518212610

Wind in September

Winds average 5 mph in September.

Across September, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 42 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over September. Sunrise moves from 5:20 AM to 5:40 AM, and sunset from 6:03 PM to 5:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:206:03
212.75:216:01
312.65:226:00
412.65:225:59
512.65:235:57
612.55:245:56
712.55:245:55
812.55:255:53
912.45:265:52
1012.45:265:51
1112.45:275:49
1212.35:285:48
1312.35:285:46
1412.35:295:45
1512.25:305:44
1612.25:305:42
1712.25:315:41
1812.15:325:39
1912.15:325:38
2012.15:335:37
2112.05:345:35
2212.05:345:34
2312.05:355:32
2411.95:365:31
2511.95:365:30
2611.95:375:28
2711.85:385:27
2811.85:385:25
2911.85:395:24
3011.75:405:23

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.8 kWh/m².

For context, solar energy here swings from a low near 2.46 kWh/m² to a high of 6.27 kWh/m² in May across the year — September's 4.8 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
134.9Bright
144.9Bright
154.9Bright
164.8Bright
174.8Bright
184.7Bright
194.7Bright
204.7Bright
214.6Bright
224.6Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.4Bright
284.4Bright
294.4Bright
304.3Bright
Planning a trip in September

Is September a good time to visit Auburn?

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

5.4
Sightseeing
6th-best month of the year
7.0
Beach & pool
1st-best month of the year

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

What to pack for Auburn in September

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

In September, Auburn sees daytime highs around 85°F and nights near 67°F. Pack light clothes. Worth having: rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Auburn in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Auburn peaks around July 14 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 14UV 10Dec 19UV 3
UV index (midday)Level
Jan4Moderate
Feb5High
Mar7High
Apr8Very high
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in Auburn 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 Auburn is worst in July — around 20 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (January, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodJul 1919 µg/m³Jan 137 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb10Good
Mar13Moderate
Apr10Good
May12Good
Jun16Moderate
Jul20Moderate
Aug18Moderate
Sep18Moderate
Oct14Moderate
Nov10Good
Dec8Good
Location & terrain

Where is Auburn?

Auburn sits at 32.6°N, 85.5°W, 705 ft above sea level, in United States. The nearest listed city is Opelika, 6.2 mi away.

Topography around Auburn

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

Within 2 miles, the terrain around Auburn has only modest variations in elevation — a maximum elevation change of 213 ft around an average of 686 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 719 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,309 ft.

The land around Auburn is covered by trees (59%) and artificial surfaces (29%) within 2 miles, trees (77%) within 10 miles, and trees (85%) within 50 miles.

2 miles
213 ft
10 miles
719 ft
50 miles
1,309 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Opelika 6.2 mi · Phenix City 30 mi · Columbus 30 mi · LaGrange 40 mi · Montgomery 50 mi · Millbrook 52 mi · Prattville 58 mi · Troy 62 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 Auburn (32.6099°, -85.4808°, elevation 705 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).