Montgomery weather in September

In September, Montgomery sees average daytime highs of 87°F and overnight lows near 67°F, with 3.1 in of rain across 8.1 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 89°F in the first days to 83°F by the end. The sky is clear or mostly clear about 40% 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 Montgomery's 3rd-clearest and 9th-windiest month. For the whole year in context, see Montgomery's year-round climate.

Daytime high
87°
4th warmest
Overnight low
67°
9th coldest
Rainfall
3.1 in
8.1 wet days
Daylight
12 h 12 min
5:34 AM – 5:45 PM
Cloud cover
51%
3rd clearest
Wind
5 mph
9th windiest
Solar energy
4.87 kWh/m²
Travel score
5.0
out of 10

Montgomery is capital city of the U.S. state of Alabama and seat of Montgomery County.

Density
467/km²
people per km²
Founded
1817

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 89°F in the first days to 83°F by the end.

A typical September day in Montgomery reaches about 87°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 79°F and 94°F. Set against its neighbours, September runs about 4°F cooler than August and about 9°F warmer than October.

60°80°100°151015202530
Avg high (°F)Avg low (°F)
19071
29071
38971
48970
58970
68970
78970
88970
98969
108969
118869
128869
138868
148868
158768
168768
178767
188767
198667
208666
218666
228566
238565
248565
258465
268464
278464
288363
298363
308363

How September really feels in Montgomery

Once humidity and wind are folded in, September averages 14 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
14
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.

Montgomery 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 daysDaylight (hours)Travel score
Jan58° / 38°4.29.710.14.3
Feb62° / 41°4.39.310.85.3
Mar69° / 47°4.49.411.86.6
Apr76° / 54°3.78.312.87.2
May84° / 63°3.19.113.65.8
Jun89° / 71°3.712.414.13.9
Jul91° / 73°3.914.913.93.2
Aug91° / 73°3.613.913.23.4
Sep87° / 67°3.18.112.25.0
Oct78° / 56°2.96.511.27.5
Nov67° / 45°3.87.210.36.8
Dec60° / 40°4.39.69.94.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% 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 42%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15644
25743
35743
45842
55842
65842
75842
85842
95941
105941
115941
125941
135941
145842
155842
165743
175743
185644
195743
205743
215644
225743
235743
245842
255842
265941
275941
285941
296040
306040

Chance of precipitation in September

Any precipitation

Montgomery gets around 3.1 in of rain over 8.1 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 35% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
135
234
333
432
531
630
729
828
927
1027
1126
1226
1326
1426
1526
1626
1727
1827
1927
2027
2127
2227
2326
2426
2526
2625
2725
2824
2924
3023

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 30% 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 (%)Miserable (%)
1261534431
2271534421
3281534400
4281634390
5391634380
63101734360
73111733350
83121833340
94121932330
104132031320
114142030310
125152130300
135152229290
145152229280
156162328270
166162328260
177162428250
187152429240
198152429230
2010152428220
2111152428210
2213152428200
2314152428190
2416152427180
2518152327160
2619152327150
2721162227140
2822162226130
2924162226120
3025172125110

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
195calm
205calm
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 5:24 AM to 5:43 AM, and sunset from 6:06 PM to 5:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:246:06
212.75:256:05
312.65:256:03
412.65:266:02
512.65:276:01
612.55:275:59
712.55:285:58
812.55:285:56
912.45:295:55
1012.45:305:54
1112.45:305:52
1212.35:315:51
1312.35:325:50
1412.35:325:48
1512.25:335:47
1612.25:345:45
1712.25:345:44
1812.15:355:43
1912.15:365:41
2012.15:365:40
2112.05:375:38
2212.05:385:37
2312.05:385:36
2411.95:395:34
2511.95:405:33
2611.95:405:32
2711.85:415:30
2811.85:425:29
2911.85:425:27
3011.75:435:26

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 2.49 kWh/m² to a high of 6.29 kWh/m² in May across the year — September's 4.87 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
154.9Bright
164.9Bright
174.8Bright
184.8Bright
194.8Bright
204.7Bright
214.7Bright
224.7Bright
234.6Bright
244.6Bright
254.6Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.4Bright
Planning a trip in September

Is September a good time to visit Montgomery?

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

5.0
Sightseeing
7th-best month of the year
7.0
Beach & pool
2nd-best month of the year

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

What to pack for Montgomery in September

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

In September, Montgomery sees daytime highs around 87°F and nights near 67°F. Pack light clothes. Worth having: rain gear and sun protection. About 8 days see rain.

light clothesrain gearsun protection

UV index in Montgomery 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 Montgomery peaks around July 15 at about 10 (extreme) — 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 highVery highHighModerateJul 15UV 10Dec 19UV 3
UV index (midday)Level
Jan4Moderate
Feb5High
Mar7High
Apr8Very high
May9Very high
Jun9Very high
Jul10Extreme
Aug9Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in Montgomery 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 Montgomery is worst in July — around 20 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (January, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1820 µg/m³Jan 146 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar10Good
Apr10Good
May12Good
Jun16Moderate
Jul20Moderate
Aug18Moderate
Sep14Moderate
Oct11Good
Nov8Good
Dec7Good
Location & terrain

Where is Montgomery?

Montgomery sits at 32.4°N, 86.3°W, 240 ft above sea level, in United States. The nearest listed city is Millbrook, 8.7 mi away.

Topography around Montgomery

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

Within 2 miles, the terrain around Montgomery has only modest variations in elevation — a maximum elevation change of 233 ft around an average of 243 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 387 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,181 ft.

The land around Montgomery is covered by trees (51%) and artificial surfaces (33%) within 2 miles, trees (53%) and grassland (29%) within 10 miles, and trees (81%) within 50 miles.

2 miles
233 ft
10 miles
387 ft
50 miles
1,181 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Millbrook 8.7 mi · Prattville 11 mi · Selma 42 mi · Troy 43 mi · Auburn 50 mi · Opelika 57 mi · Alabaster 68 mi · Pelham 70 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 Montgomery (32.3668°, -86.3°, elevation 240 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).