Sevierville weather in September

In September, Sevierville sees average daytime highs of 77°F and overnight lows near 58°F, with 3.8 in of rain across 10.6 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 80°F in the first days to 73°F by the end. The sky is clear or mostly clear about 39% of the time in September, and the air most often feels comfortable.

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 Sevierville's 3rd-clearest and 10th-windiest month. For the whole year in context, see Sevierville's year-round climate.

Daytime high
77°
4th warmest
Overnight low
58°
9th coldest
Rainfall
3.8 in
10.6 wet days
Daylight
12 h 12 min
6:22 AM – 6:35 PM
Cloud cover
52%
3rd clearest
Wind
3 mph
10th windiest
Solar energy
4.58 kWh/m²
Travel score
6.8
out of 10

Sevierville is city in Sevier County, Tennessee, USA.

Density
262/km²
people per km²
Founded
1795

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 80°F in the first days to 73°F by the end.

A typical September day in Sevierville reaches about 77°F in the afternoon and slips back to 58°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 69°F and 84°F. Set against its neighbours, September runs about 5°F cooler than August and about 10°F warmer than October.

40°50°60°70°80°151015202530
Avg high (°F)Avg low (°F)
18062
28062
38062
48062
58061
68061
77961
87960
97960
107960
117860
127859
137859
147859
157758
167758
177758
187657
197657
207657
217556
227556
237556
247455
257455
267455
277454
287354
297353
307353

How September really feels in Sevierville

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.

Sevierville weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan46° / 29°4.412.33.59.81.2
Feb50° / 32°4.011.9410.62.1
Mar58° / 38°5.013.32.411.74.0
Apr67° / 46°4.512.30.812.95.8
May73° / 54°4.414.5013.96.1
Jun79° / 62°4.115.6014.45.7
Jul82° / 65°4.416014.25.5
Aug82° / 64°3.814.3013.45.8
Sep77° / 58°3.810.6012.26.8
Oct67° / 47°3.190.211.16.5
Nov57° / 37°3.79.60.710.14.1
Dec49° / 32°4.411.82.89.61.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% 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 42%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15743
25842
35941
46040
56040
66040
76139
86139
96139
106040
116040
126139
136040
146040
155941
165842
175644
185644
195644
205644
215545
225545
235644
245743
255842
265842
275941
285941
295941
306040

Chance of precipitation in September

Any precipitation

Sevierville gets around 3.8 in of rain over 10.6 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 34% and peaks near 40% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
140
240
339
439
539
638
737
837
936
1035
1135
1234
1334
1433
1533
1633
1733
1833
1933
2033
2133
2233
2333
2432
2532
2632
2731
2831
2930
3030

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 17% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
18193735
29213733
310223632
410243630
511263528
612273426
713293324
814303323
915313221
1017323120
1118333118
1219333017
1320342917
1421342916
1522342816
1623352715
1724352615
1826352614
1927342514
2029342513
2130332412
2232322411
2334322311
2437312310
253930229
264130218
274329217
284528207
294728196
304927186

Wind in September

Winds average 3 mph in September.

Across September, daily wind ranges from about 3 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

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 6:10 AM to 6:33 AM, and sunset from 6:58 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:106:58
212.86:116:56
312.76:126:55
412.76:126:53
512.66:136:52
612.66:146:50
712.66:156:49
812.56:166:47
912.56:166:46
1012.56:176:44
1112.46:186:43
1212.46:196:41
1312.36:196:40
1412.36:206:38
1512.36:216:37
1612.26:226:35
1712.26:236:34
1812.16:236:32
1912.16:246:31
2012.16:256:29
2112.06:266:28
2212.06:276:26
2312.06:276:25
2411.96:286:23
2511.96:296:21
2611.86:306:20
2711.86:316:18
2811.86:326:17
2911.76:326:15
3011.76:336:14

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.58 kWh/m².

For context, solar energy here swings from a low near 2.15 kWh/m² to a high of 6.05 kWh/m² in June across the year — September's 4.58 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
64.9Bright
74.9Bright
84.9Bright
94.8Bright
104.8Bright
114.8Bright
124.7Bright
134.7Bright
144.7Bright
154.6Bright
164.6Bright
174.5Bright
184.5Bright
194.5Bright
204.4Bright
214.4Bright
224.4Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.2Bright
294.2Bright
304.2Bright
Planning a trip in September

Is September a good time to visit Sevierville?

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

6.8
Sightseeing
1st-best month of the year
6.0
Beach & pool
2nd-best month of the year

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

What to pack for Sevierville in September

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

In September, Sevierville sees daytime highs around 77°F and nights near 58°F. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Sevierville 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 Sevierville peaks around July 12 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 12UV 10Dec 19UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Sevierville 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 Sevierville is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (December, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1517 µg/m³Dec 226 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar10Good
Apr11Good
May13Moderate
Jun16Moderate
Jul18Moderate
Aug15Moderate
Sep11Good
Oct8Good
Nov8Good
Dec6Good
Location & terrain

Where is Sevierville?

Sevierville sits at 35.9°N, 83.6°W, 902 ft above sea level, in United States. The nearest listed city is Gatlinburg, 11 mi away.

Topography around Sevierville

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

Within 2 miles, the terrain around Sevierville has only modest variations in elevation — a maximum elevation change of 574 ft around an average of 991 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,359 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,958 ft.

The land around Sevierville is covered by trees (56%) and grassland (27%) within 2 miles, trees (68%) and grassland (24%) within 10 miles, and trees (78%) within 50 miles.

2 miles
574 ft
10 miles
2,359 ft
50 miles
5,958 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Gatlinburg 11 mi · Knoxville 21 mi · Maryville 24 mi · Morristown 28 mi · Farragut 33 mi · Oak Ridge 41 mi · Greeneville 45 mi · Asheville 60 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 Sevierville (35.8681°, -83.5618°, elevation 902 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).