Northport weather in September

In September, Northport sees average daytime highs of 86°F and overnight lows near 66°F, with 3.1 in of rain across 7.9 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 12th-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 42% 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 Northport's 3rd-clearest and 9th-windiest month. For the whole year in context, see Northport's year-round climate.

Daytime high
86°
4th warmest
Overnight low
66°
9th coldest
Rainfall
3.1 in
7.9 wet days
Daylight
12 h 12 min
5:39 AM – 5:51 PM
Cloud cover
49%
3rd clearest
Wind
5 mph
9th windiest
Solar energy
4.86 kWh/m²
Travel score
5.5
out of 10

Northport is city in Alabama, United States.

Density
562/km²
people per km²

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 Northport reaches about 86°F in the afternoon and slips back to 66°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 78°F and 93°F. Set against its neighbours, September runs about 4°F cooler than August and about 10°F warmer than October.

50°60°70°80°90°151015202530
Avg high (°F)Avg low (°F)
18970
28970
38870
48869
58869
68869
78869
88769
98768
108768
118768
128767
138767
148667
158667
168666
178666
188566
198565
208565
218465
228464
238464
248364
258363
268363
278262
288262
298261
308261

How September really feels in Northport

Once humidity and wind are folded in, September averages 9 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
9
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.

Northport weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan55° / 37°4.89.810.13.6
Feb59° / 40°5.110.210.84.5
Mar67° / 46°5.611.111.76.1
Apr74° / 54°4.99.512.86.9
May82° / 62°4.110.113.76.2
Jun87° / 70°4.212.914.24.3
Jul90° / 73°4.114.4143.5
Aug90° / 72°3.611.813.23.8
Sep86° / 66°3.17.912.25.5
Oct76° / 55°3.67.311.27.4
Nov65° / 44°3.97.910.36.3
Dec57° / 39°5.110.19.84.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15941
25941
35941
46139
56139
66139
76139
86139
96139
106337
116337
126238
136139
146139
156139
166040
176040
185941
195941
206040
216040
226040
236139
246238
256238
266337
276436
286436
296436
306535

Chance of precipitation in September

Any precipitation

Northport gets around 3.1 in of rain over 7.9 wet days in September, the driest month. 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 30% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
130
230
329
429
529
628
728
828
927
1027
1127
1227
1327
1427
1527
1627
1727
1827
1927
2027
2126
2226
2325
2425
2524
2624
2723
2823
2922
3022

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 55% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1251538382
2261639362
3261639351
4371739331
5371839321
6481939301
7481939291
8592038280
95102138270
106102137260
116112236250
127112235240
138122334240
148122333230
159132332230
169132431220
1710132431220
1811142430210
1912142529200
2013142528190
2115142528180
2216152427170
2318152427160
2420152426150
2521162326140
2623162326120
2725162225110
2826172225100
292817222490
303017212480

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
215calm
225calm
235calm
245calm
255calm
265calm
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 5:28 AM to 5:48 AM, and sunset from 6:12 PM to 5:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:286:12
212.75:296:10
312.75:306:09
412.65:306:08
512.65:316:06
612.65:326:05
712.55:326:03
812.55:336:02
912.45:346:01
1012.45:345:59
1112.45:355:58
1212.35:365:56
1312.35:375:55
1412.35:375:54
1512.25:385:52
1612.25:395:51
1712.25:395:49
1812.15:405:48
1912.15:415:46
2012.15:415:45
2112.05:425:44
2212.05:435:42
2312.05:435:41
2411.95:445:39
2511.95:455:38
2611.95:455:36
2711.85:465:35
2811.85:475:34
2911.75:485:32
3011.75:485:31

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.86 kWh/m².

For context, solar energy here swings from a low near 2.35 kWh/m² to a high of 6.16 kWh/m² in May across the year — September's 4.86 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
144.9Bright
154.9Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.7Bright
214.7Bright
224.7Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
Planning a trip in September

Is September a good time to visit Northport?

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

5.5
Sightseeing
6th-best month of the year
7.2
Beach & pool
1st-best month of the year

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

What to pack for Northport in September

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

In September, Northport sees daytime highs around 86°F and nights near 66°F. Pack light clothes. Worth having: sun protection. About 8 days see rain.

light clothessun protection

UV index in Northport 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 Northport 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
Mar6High
Apr8Very high
May8Very high
Jun9Very high
Jul10Extreme
Aug9Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in Northport 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 Northport is worst in July — around 21 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (January, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1721 µg/m³Jan 136 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar10Good
Apr10Good
May13Moderate
Jun17Moderate
Jul21Moderate
Aug18Moderate
Sep13Moderate
Oct9Good
Nov8Good
Dec7Good
Location & terrain

Where is Northport?

Northport sits at 33.2°N, 87.6°W, 220 ft above sea level, in United States. The nearest listed city is Tuscaloosa, 1.2 mi away.

Topography around Northport

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

Within 2 miles, the terrain around Northport has only modest variations in elevation — a maximum elevation change of 243 ft around an average of 203 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 518 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,194 ft.

The land around Northport is covered by trees (54%) and artificial surfaces (26%) within 2 miles, trees (75%) within 10 miles, and trees (88%) within 50 miles.

2 miles
243 ft
10 miles
518 ft
50 miles
1,194 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Tuscaloosa 1.2 mi · Hueytown 37 mi · Bessemer 38 mi · Helena 43 mi · Alabaster 44 mi · Pelham 45 mi · Hoover 46 mi · Homewood 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 Northport (33.229°, -87.5772°, elevation 220 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).