Goodlettsville weather in September

In September, Goodlettsville sees average daytime highs of 82°F and overnight lows near 63°F, with 3.2 in of rain across 8.1 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 86°F in the first days to 78°F by the end. The sky is clear or mostly clear about 44% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Goodlettsville's 2nd-clearest and 9th-windiest month. For the whole year in context, see Goodlettsville's year-round climate.

Daytime high
82°
4th warmest
Overnight low
63°
9th coldest
Rainfall
3.2 in
8.1 wet days
Daylight
12 h 12 min
5:34 AM – 5:48 PM
Cloud cover
49%
2nd clearest
Wind
5 mph
9th windiest
Solar energy
4.7 kWh/m²
Travel score
6.4
out of 10

Goodlettsville is city in Tennessee, United States of America.

Density
456/km²
people per km²
Founded
1958

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 86°F in the first days to 78°F by the end.

A typical September day in Goodlettsville reaches about 82°F in the afternoon and slips back to 63°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 73°F and 91°F. Set against its neighbours, September runs about 6°F cooler than August and about 11°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
18668
28667
38667
48667
58566
68566
78566
88565
98465
108465
118464
128364
138364
148363
158363
168263
178262
188262
198161
208161
218161
228060
238060
248059
257959
267958
277858
287858
297857
307857

How September really feels in Goodlettsville

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.

Goodlettsville 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 daysSnow daysDaylight (hours)Travel score
Jan47° / 31°4.110.41.79.81.4
Feb51° / 34°4.610.41.710.62.4
Mar60° / 41°5.011.50.711.74.6
Apr70° / 50°5.011.1012.96.2
May78° / 60°4.912.5013.96.3
Jun86° / 68°3.912.5014.44.8
Jul89° / 71°4.212.8014.24.0
Aug88° / 70°3.310.6013.44.5
Sep82° / 63°3.28.1012.26.4
Oct71° / 51°3.68011.17.1
Nov59° / 41°3.99.10.210.14.7
Dec50° / 35°4.910.70.89.62.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15941
25941
35941
45941
55941
65941
75941
86040
96040
106040
116040
125941
135941
145941
155941
165842
175842
185842
195941
205941
215941
226040
236040
246139
256238
266337
276436
286436
296535
306535

Chance of precipitation in September

Any precipitation

Goodlettsville gets around 3.2 in of rain over 8.1 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 29% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
129
229
329
429
528
628
727
827
926
1026
1125
1225
1325
1426
1526
1626
1727
1827
1928
2028
2128
2228
2328
2427
2527
2626
2726
2825
2925
3024

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 25% of days. Sticky, muggy-or-worse air turns up on roughly 35% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1510223825
2611233823
3611243722
4712253620
5812263419
6913273317
71114283216
81214283115
91315293013
101416292912
111616292811
121717292710
131817292610
14191729269
15211828259
16221828248
17231927238
18251927227
19262026227
20282025216
21292124206
22312123196
23332122185
24352121185
25362221175
26382220164
27402219154
28422219144
29432218143
30452217133

Wind in September

Winds average 5 mph in September.

Across September, daily wind ranges from about 5 mph on the calmest days to 5 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
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 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 66 minutes over September. Sunrise moves from 5:22 AM to 5:46 AM, and sunset from 6:11 PM to 5:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:226:11
212.85:236:09
312.75:246:08
412.75:256:06
512.75:256:05
612.65:266:03
712.65:276:02
812.55:286:00
912.55:295:59
1012.55:305:57
1112.45:305:56
1212.45:315:54
1312.35:325:53
1412.35:335:51
1512.35:345:50
1612.25:345:48
1712.25:355:46
1812.15:365:45
1912.15:375:43
2012.15:385:42
2112.05:385:40
2212.05:395:39
2312.05:405:37
2411.95:415:36
2511.95:425:34
2611.85:435:32
2711.85:435:31
2811.85:445:29
2911.75:455:28
3011.75:465:26

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.7 kWh/m².

For context, solar energy here swings from a low near 1.98 kWh/m² to a high of 6.22 kWh/m² in June across the year — September's 4.7 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.1Bright
35.1Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
84.9Bright
94.9Bright
104.9Bright
114.8Bright
124.8Bright
134.8Bright
144.7Bright
154.7Bright
164.7Bright
174.6Bright
184.6Bright
194.6Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.4Bright
254.4Bright
264.4Bright
274.4Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in September

Is September a good time to visit Goodlettsville?

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

6.4
Sightseeing
2nd-best month of the year
7.1
Beach & pool
1st-best month of the year

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

What to pack for Goodlettsville in September

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

In September, Goodlettsville sees daytime highs around 82°F and nights near 63°F. Pack light clothes. Worth having: rain gear and sun protection. About 8 days see rain.

light clothesrain gearsun protection

UV index in Goodlettsville 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 Goodlettsville peaks around July 10 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 10UV 9Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Goodlettsville 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 Goodlettsville is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1518 µg/m³Dec 147 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar10Good
Apr10Good
May13Moderate
Jun16Moderate
Jul19Moderate
Aug15Moderate
Sep11Good
Oct7Good
Nov7Good
Dec7Good
Location & terrain

Where is Goodlettsville?

Goodlettsville sits at 36.3°N, 86.7°W, 476 ft above sea level, in United States. The nearest listed city is Hendersonville, 5.6 mi away.

Topography around Goodlettsville

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

Within 2 miles, the terrain around Goodlettsville has only modest variations in elevation — a maximum elevation change of 515 ft around an average of 561 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 689 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,178 ft.

The land around Goodlettsville is covered by trees (59%) and grassland (21%) within 2 miles, trees (66%) and grassland (21%) within 10 miles, and trees (57%) and grassland (25%) within 50 miles.

2 miles
515 ft
10 miles
689 ft
50 miles
1,178 ft
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Hendersonville 5.6 mi · Hermitage 9.9 mi · Nashville 12 mi · Mount Juliet 14 mi · Gallatin 16 mi · Springfield 16 mi · Brentwood 21 mi · Brentwood Estates 21 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 Goodlettsville (36.3231°, -86.7133°, elevation 476 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).