Asheville weather in September

In September, Asheville sees average daytime highs of 75°F and overnight lows near 57°F, with 3.7 in of rain across 9.6 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 78°F in the first days to 71°F by the end. The sky is clear or mostly clear about 34% 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 Asheville's 3rd-clearest and 9th-windiest month. For the whole year in context, see Asheville's year-round climate.

Daytime high
75°
4th warmest
Overnight low
57°
9th coldest
Rainfall
3.7 in
9.6 wet days
Daylight
12 h 12 min
6:18 AM – 6:31 PM
Cloud cover
56%
3rd clearest
Wind
4 mph
9th windiest
Solar energy
4.54 kWh/m²
Travel score
6.9
out of 10

Asheville is county seat of Buncombe County, North Carolina, United States.

Density
799/km²
people per km²
Founded
1797

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 78°F in the first days to 71°F by the end.

A typical September day in Asheville reaches about 75°F in the afternoon and slips back to 57°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 67°F and 82°F. Set against its neighbours, September runs about 5°F cooler than August and about 9°F warmer than October.

40°50°60°70°80°151015202530
Avg high (°F)Avg low (°F)
17861
27861
37861
47860
57860
67760
77760
87759
97759
107659
117658
127658
137658
147558
157557
167557
177457
187456
197456
207456
217355
227355
237355
247354
257254
267254
277253
287153
297152
307152

How September really feels in Asheville

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.

Asheville weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan46° / 28°3.810.12.29.91.2
Feb49° / 31°3.39.32.210.72.1
Mar57° / 37°4.211.21.411.73.9
Apr65° / 45°3.710.10.312.95.9
May72° / 53°3.511.5013.96.4
Jun78° / 60°3.714014.46.0
Jul81° / 64°3.915.6014.25.6
Aug80° / 63°4.114.3013.35.9
Sep75° / 57°3.79.6012.26.9
Oct66° / 46°3.17.40.111.16.5
Nov56° / 36°3.38.10.410.14.0
Dec48° / 31°3.58.91.49.61.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% 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 48%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15050
25050
35149
45149
55248
65248
75248
85347
95347
105347
115347
125347
135347
145248
155149
165248
175149
185050
194951
205050
215050
225149
235149
245248
255347
265446
275545
285545
295644
305545

Chance of precipitation in September

Any precipitation

Asheville gets around 3.7 in of rain over 9.6 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 32% and peaks near 39% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
139
239
338
438
537
636
735
834
933
1032
1132
1231
1331
1430
1530
1630
1730
1830
1930
2030
2130
2230
2329
2429
2528
2628
2727
2827
2927
3026

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 32% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
111243827
212253725
313263624
415273523
516293421
617303320
719313218
820323117
921333016
1023333014
1124342913
1225342912
1326342812
1427352711
1528352710
1629352610
1730352610
183135259
193235259
203335248
213534238
223634237
233833227
244032216
254232206
264531195
274730185
284929175
295228164
305427154

Wind in September

Winds average 4 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
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
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 6:06 AM to 6:29 AM, and sunset from 6:54 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:066:54
212.86:076:52
312.76:086:51
412.76:096:49
512.66:096:48
612.66:106:46
712.66:116:45
812.56:126:43
912.56:126:42
1012.56:136:40
1112.46:146:39
1212.46:156:37
1312.36:166:36
1412.36:166:34
1512.36:176:33
1612.26:186:31
1712.26:196:30
1812.16:196:28
1912.16:206:27
2012.16:216:25
2112.06:226:24
2212.06:236:22
2312.06:236:21
2411.96:246:19
2511.96:256:17
2611.86:266:16
2711.86:276:14
2811.86:276:13
2911.76:286:11
3011.76:296:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.54 kWh/m².

For context, solar energy here swings from a low near 2.29 kWh/m² to a high of 6.06 kWh/m² in June across the year — September's 4.54 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
15.0Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.7Bright
124.7Bright
134.7Bright
144.6Bright
154.6Bright
164.5Bright
174.5Bright
184.5Bright
194.4Bright
204.4Bright
214.4Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
Planning a trip in September

Is September a good time to visit Asheville?

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

6.9
Sightseeing
1st-best month of the year
5.6
Beach & pool
4th-best month of the year

September is a reasonable time to visit Asheville for sightseeing.

What to pack for Asheville in September

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

In September, Asheville sees daytime highs around 75°F and nights near 57°F. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Asheville 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 Asheville peaks around July 12 at about 10 (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 12UV 10Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun10Very high
Jul10Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Asheville 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 Asheville is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1618 µg/m³Dec 237 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar11Good
Apr11Good
May13Moderate
Jun16Moderate
Jul18Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov9Good
Dec7Good
Location & terrain

Where is Asheville?

Asheville sits at 35.6°N, 82.6°W, 2,129 ft above sea level, in United States. The nearest listed city is Greeneville, 42 mi away.

Topography around Asheville

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

Within 2 miles, the terrain around Asheville has significant variations in elevation — a maximum elevation change of 1,165 ft around an average of 2,224 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,428 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,938 ft.

The land around Asheville is covered by trees (68%) and artificial surfaces (23%) within 2 miles, trees (80%) within 10 miles, and trees (87%) within 50 miles.

2 miles
1,165 ft
10 miles
3,428 ft
50 miles
5,938 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Greeneville 42 mi · Taylors 49 mi · Greer 49 mi · Wade Hampton 50 mi · Morganton 50 mi · Johnson City 50 mi · Greenville 52 mi · Easley 53 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 Asheville (35.6009°, -82.554°, elevation 2,129 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).