Winston-Salem weather in September

In September, Winston-Salem sees average daytime highs of 80°F and overnight lows near 62°F, with 4.0 in of rain across 9 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 84°F in the first days to 76°F by the end. The sky is clear or mostly clear about 38% 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 Winston-Salem's 4th-clearest and 9th-windiest month. For the whole year in context, see Winston-Salem's year-round climate.

Daytime high
80°
4th warmest
Overnight low
62°
9th coldest
Rainfall
4.0 in
9 wet days
Daylight
12 h 12 min
6:09 AM – 6:22 PM
Cloud cover
55%
4th clearest
Wind
5 mph
9th windiest
Solar energy
4.48 kWh/m²
Travel score
6.5
out of 10

Winston-Salem is city in and the county seat of Forsyth County, North Carolina, United States.

Density
696/km²
people per km²
Founded
1766

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 84°F in the first days to 76°F by the end.

A typical September day in Winston-Salem reaches about 80°F in the afternoon and slips back to 62°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 72°F and 89°F. Set against its neighbours, September runs about 6°F cooler than August and about 10°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
18567
28566
38466
48466
58465
68365
78365
88365
98364
108264
118264
128264
138163
148163
158163
168062
178062
188062
197961
207961
217961
227860
237860
247860
257759
267759
277658
287658
297658
307657

How September really feels in Winston-Salem

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.

Winston-Salem weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan49° / 32°3.69.41.59.82.1
Feb53° / 34°3.38.91.510.63.0
Mar61° / 40°4.3100.811.75.1
Apr70° / 49°3.69.5012.96.6
May78° / 58°3.311013.96.6
Jun85° / 66°3.612.1014.44.9
Jul88° / 70°3.714.1014.23.9
Aug86° / 69°3.611.8013.44.7
Sep80° / 62°4.09012.26.5
Oct70° / 50°3.37.3011.17.1
Nov60° / 40°3.37.70.110.15.2
Dec52° / 34°3.790.69.62.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 46%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15446
25446
35545
45545
55545
65545
75545
85545
95644
105545
115644
125644
135644
145545
155545
165446
175347
185248
195149
205149
215149
225149
235248
245248
255347
265347
275446
285545
295545
305644

Chance of precipitation in September

Any precipitation

Winston-Salem gets around 4.0 in of rain over 9 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 29% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
132
232
331
430
530
629
729
828
928
1027
1127
1227
1327
1427
1528
1628
1729
1830
1930
2031
2131
2231
2331
2431
2530
2630
2729
2828
2928
3027

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 27% of days. Sticky, muggy-or-worse air turns up on roughly 34% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1715244113
2815243913
3916253813
41017253613
51117263412
61218263212
71318273111
81419273011
91519272910
10161927289
11172027279
12192027278
13202027267
14212027267
15222026266
16232026256
17232026255
18242026255
19252125254
20262125254
21272125244
22282124243
23302123233
24312123233
25332122223
26342122212
27362121202
28372121192
29392120182
30412120162

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 5:57 AM to 6:20 AM, and sunset from 6:45 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:576:45
212.85:576:43
312.75:586:42
412.75:596:40
512.76:006:39
612.66:016:37
712.66:016:36
812.56:026:34
912.56:036:33
1012.56:046:31
1112.46:056:30
1212.46:056:28
1312.36:066:27
1412.36:076:25
1512.36:086:24
1612.26:096:22
1712.26:096:21
1812.16:106:19
1912.16:116:17
2012.16:126:16
2112.06:136:14
2212.06:136:13
2312.06:146:11
2411.96:156:10
2511.96:166:08
2611.86:176:07
2711.86:176:05
2811.86:186:04
2911.76:196:02
3011.76:206:01

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.48 kWh/m².

For context, solar energy here swings from a low near 2.24 kWh/m² to a high of 6.16 kWh/m² in June across the year — September's 4.48 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
44.9Bright
54.9Bright
64.9Bright
74.8Bright
84.8Bright
94.8Bright
104.7Bright
114.7Bright
124.7Bright
134.6Bright
144.6Bright
154.5Bright
164.5Bright
174.4Bright
184.4Bright
194.3Bright
204.3Bright
214.3Bright
224.2Bright
234.2Bright
244.2Bright
254.1Bright
264.1Bright
274.1Bright
284.1Bright
294.0Bright
304.0Bright
Planning a trip in September

Is September a good time to visit Winston-Salem?

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

6.5
Sightseeing
4th-best month of the year
6.8
Beach & pool
1st-best month of the year

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

What to pack for Winston-Salem in September

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

In September, Winston-Salem sees daytime highs around 80°F and nights near 62°F. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

UV index in Winston-Salem 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 Winston-Salem peaks around July 13 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 13UV 10Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Winston-Salem 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 Winston-Salem is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1718 µg/m³Dec 138 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar12Good
Apr12Good
May14Moderate
Jun17Moderate
Jul18Moderate
Aug17Moderate
Sep13Moderate
Oct9Good
Nov8Good
Dec8Good
Location & terrain

Where is Winston-Salem?

Winston-Salem sits at 36.1°N, 80.2°W, 961 ft above sea level, in United States. The nearest listed city is Clemmons, 9.3 mi away.

Topography around Winston-Salem

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

Within 2 miles, the terrain around Winston-Salem has only modest variations in elevation — a maximum elevation change of 269 ft around an average of 879 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 554 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,593 ft.

The land around Winston-Salem is covered by trees (51%) and artificial surfaces (35%) within 2 miles, trees (68%) and grassland (20%) within 10 miles, and trees (76%) within 50 miles.

2 miles
269 ft
10 miles
554 ft
50 miles
3,593 ft
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Clemmons 9.3 mi · Kernersville 9.3 mi · High Point 17 mi · Thomasville 17 mi · Lexington 19 mi · Greensboro 25 mi · Salisbury 32 mi · Asheboro 36 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 Winston-Salem (36.0999°, -80.2442°, elevation 961 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).