Greensboro weather in September

In September, Greensboro sees average daytime highs of 80°F and overnight lows near 63°F, with 4.1 in of rain across 9.7 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 37% 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 Greensboro's 6th-clearest and 9th-windiest month. For the whole year in context, see Greensboro's year-round climate.

Daytime high
80°
4th warmest
Overnight low
63°
9th coldest
Rainfall
4.1 in
9.7 wet days
Daylight
12 h 12 min
6:07 AM – 6:20 PM
Cloud cover
56%
6th clearest
Wind
5 mph
9th windiest
Solar energy
4.46 kWh/m²
Travel score
6.5
out of 10

Greensboro is city in North Carolina, United States of America.

Density
836/km²
people per km²
Founded
1808

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 Greensboro reaches about 80°F in the afternoon and slips back to 63°F overnight — a 17°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)
18467
28467
38466
48366
58366
68365
78365
88365
98265
108264
118264
128164
138164
148163
158063
168063
178062
187962
197962
207962
217861
227861
237860
247760
257760
267759
277659
287659
297658
307558

How September really feels in Greensboro

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.

Greensboro 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°3.79.31.59.82.2
Feb53° / 35°3.28.81.510.63.0
Mar61° / 41°4.310.20.711.75.0
Apr70° / 50°3.59.3012.96.6
May78° / 59°3.511.2013.96.5
Jun85° / 67°3.913014.44.9
Jul88° / 71°4.014.6014.24.0
Aug86° / 69°3.812013.44.7
Sep80° / 63°4.19.7012.26.5
Oct70° / 51°3.17.3011.17.1
Nov60° / 41°3.37.70.110.15.2
Dec52° / 35°3.68.90.79.62.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15347
25347
35347
45347
55347
65347
75446
85446
95446
105446
115446
125446
135347
145347
155248
165149
175149
185149
194951
205050
215050
224951
234951
245050
255149
265248
275248
285347
295446
305446

Chance of precipitation in September

Any precipitation

Greensboro gets around 4.1 in of rain over 9.7 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 31% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
134
234
334
434
533
633
732
831
931
1030
1130
1230
1329
1429
1529
1629
1730
1830
1931
2031
2131
2231
2331
2431
2531
2630
2729
2829
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 28% of days. Sticky, muggy-or-worse air turns up on roughly 36% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1713244116
2813244015
3914243815
41014253615
51115253514
61216263314
71316263213
81417273112
91517273012
101617272911
111717272810
121818272810
13191827289
14191827278
15201826278
16211926277
17221925277
18222025276
19232024276
20242024275
21252023275
22262023264
23282122254
24292122254
25312121243
26332121233
27342121213
28362121203
29372120193
30392120183

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
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 5:55 AM to 6:18 AM, and sunset from 6:43 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:556:43
212.85:566:41
312.75:566:40
412.75:576:39
512.75:586:37
612.65:596:36
712.66:006:34
812.56:006:33
912.56:016:31
1012.56:026:29
1112.46:036:28
1212.46:046:26
1312.36:046:25
1412.36:056:23
1512.36:066:22
1612.26:076:20
1712.26:086:19
1812.16:086:17
1912.16:096:16
2012.16:106:14
2112.06:116:13
2212.06:126:11
2312.06:126:09
2411.96:136:08
2511.96:146:06
2611.86:156:05
2711.86:166:03
2811.86:166:02
2911.76:176:00
3011.76:185:59

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.46 kWh/m².

For context, solar energy here swings from a low near 2.25 kWh/m² to a high of 6.16 kWh/m² in June across the year — September's 4.46 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
34.9Bright
44.9Bright
54.9Bright
64.8Bright
74.8Bright
84.8Bright
94.7Bright
104.7Bright
114.7Bright
124.6Bright
134.6Bright
144.5Bright
154.5Bright
164.5Bright
174.4Bright
184.4Bright
194.3Bright
204.3Bright
214.2Bright
224.2Bright
234.2Bright
244.1Bright
254.1Bright
264.1Bright
274.1Bright
284.0Bright
294.0Bright
304.0Bright
Planning a trip in September

Is September a good time to visit Greensboro?

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

6.5
Sightseeing
3rd-best month of the year
6.6
Beach & pool
1st-best month of the year

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

What to pack for Greensboro in September

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

In September, Greensboro sees daytime highs around 80°F and nights near 63°F. Worth packing: light clothes and rain gear. About 10 days see rain.

light clothesrain gear

UV index in Greensboro 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 Greensboro peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 14UV 9Dec 20UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Greensboro 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 Greensboro is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1718 µg/m³Dec 128 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar12Moderate
Apr12Moderate
May14Moderate
Jun16Moderate
Jul18Moderate
Aug17Moderate
Sep12Moderate
Oct10Good
Nov8Good
Dec8Good
Location & terrain

Where is Greensboro?

Greensboro sits at 36.1°N, 79.8°W, 873 ft above sea level, in United States. The nearest listed city is High Point, 14 mi away.

Topography around Greensboro

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

Within 2 miles, the terrain around Greensboro has only modest variations in elevation — a maximum elevation change of 197 ft around an average of 807 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 584 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,051 ft.

The land around Greensboro is covered by trees (47%) and artificial surfaces (42%) within 2 miles, trees (66%) within 10 miles, and trees (80%) within 50 miles.

2 miles
197 ft
10 miles
584 ft
50 miles
3,051 ft
treesgrasslandcroplandartificial surfaceswater
September weather nearby: High Point 14 mi · Kernersville 16 mi · Burlington 20 mi · Thomasville 21 mi · Asheboro 25 mi · Winston-Salem 25 mi · Eden 29 mi · Lexington 31 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 Greensboro (36.0726°, -79.792°, elevation 873 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).