Greenville weather in September

In September, Greenville sees average daytime highs of 81°F and overnight lows near 65°F, with 5.2 in of rain across 11.5 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 84°F in the first days to 78°F by the end. The sky is clear or mostly clear about 33% 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 Greenville's 8th-clearest and 9th-windiest month. For the whole year in context, see Greenville's year-round climate.

Daytime high
81°
4th warmest
Overnight low
65°
9th coldest
Rainfall
5.2 in
11.5 wet days
Daylight
12 h 12 min
5:57 AM – 6:10 PM
Cloud cover
58%
8th clearest
Wind
6 mph
9th windiest
Solar energy
4.35 kWh/m²
Travel score
6.0
out of 10

Greenville is city in Pitt County, North Carolina, United States.

Density
978/km²
people per km²
Founded
1786

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 78°F by the end.

A typical September day in Greenville reaches about 81°F in the afternoon and slips back to 65°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 88°F. Set against its neighbours, September runs about 5°F cooler than August and about 8°F warmer than October.

50°60°70°80°90°151015202530
Avg high (°F)Avg low (°F)
18569
28469
38468
48468
58468
68468
78367
88367
98367
108367
118366
128266
138266
148266
158265
168165
178165
188165
198164
208064
218064
228064
238063
247963
257963
267962
277962
287862
297861
307861

How September really feels in Greenville

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.

Greenville weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan53° / 35°3.79.119.93.2
Feb56° / 37°3.19.10.810.73.9
Mar63° / 43°3.69.80.211.75.6
Apr72° / 51°3.28.6012.96.9
May79° / 60°3.710.7013.96.6
Jun85° / 68°4.513.7014.44.8
Jul88° / 72°5.316.9014.23.8
Aug86° / 71°5.414.4013.34.4
Sep81° / 65°5.211.5012.26.0
Oct73° / 54°3.57.4011.17.2
Nov64° / 44°3.57.7010.16.1
Dec56° / 38°3.69.20.39.64.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% 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 50%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14951
24951
35050
44951
54951
65050
75050
85149
95149
105149
115149
125149
135050
145050
155050
164951
174951
184951
194951
204753
214852
224753
234852
244951
254951
265050
275149
285149
295149
305248

Chance of precipitation in September

Any precipitation

Greenville gets around 5.2 in of rain over 11.5 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 37% and peaks near 42% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
142
242
342
441
541
641
740
840
939
1039
1138
1238
1337
1436
1536
1636
1735
1835
1935
2035
2135
2235
2335
2435
2534
2634
2733
2833
2933
3032

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 57% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1251728434
2261828424
3261928414
4371928404
5372028384
6482028374
7482128353
8592129343
9592129323
106102130312
117102130292
128112130282
138112131272
149122131261
1510122031251
1611132032241
1711132032231
1812132031221
1913142031221
2014142031210
2115142030210
2216142029200
2317142028200
2418152127190
2520152126180
2621152125170
2722152125170
2824152124160
2925152223150
3026152222150

Wind in September

Winds average 6 mph in September.

Across September, daily wind ranges from about 6 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
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 5:45 AM to 6:08 AM, and sunset from 6:33 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:456:33
212.85:466:31
312.75:476:30
412.75:486:28
512.65:496:27
612.65:496:26
712.65:506:24
812.55:516:23
912.55:526:21
1012.55:526:20
1112.45:536:18
1212.45:546:17
1312.35:556:15
1412.35:566:13
1512.35:566:12
1612.25:576:10
1712.25:586:09
1812.15:596:07
1912.15:596:06
2012.16:006:04
2112.06:016:03
2212.06:026:01
2312.06:036:00
2411.96:035:58
2511.96:045:57
2611.86:055:55
2711.86:065:54
2811.86:075:52
2911.76:075:51
3011.76:085:49

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.35 kWh/m².

For context, solar energy here swings from a low near 2.29 kWh/m² to a high of 6.12 kWh/m² in June across the year — September's 4.35 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.7Bright
64.7Bright
74.7Bright
84.6Bright
94.6Bright
104.6Bright
114.5Bright
124.5Bright
134.5Bright
144.4Bright
154.4Bright
164.3Bright
174.3Bright
184.3Bright
194.2Bright
204.2Bright
214.2Bright
224.1Bright
234.1Bright
244.1Bright
254.1Bright
264.0Bright
274.0Bright
284.0Bright
294.0Moderate
304.0Moderate
Planning a trip in September

Is September a good time to visit Greenville?

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

6.0
Sightseeing
5th-best month of the year
6.5
Beach & pool
1st-best month of the year

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

What to pack for Greenville in September

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

In September, Greenville sees daytime highs around 81°F and nights near 65°F. Pack light clothes. Worth having: rain gear. About 12 days see rain.

light clothesrain gear

UV index in Greenville 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 Greenville peaks around July 12 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 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 9Dec 18UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul9Very high
Aug7Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Moderate

Air quality in Greenville 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 Greenville is worst in June — around 18 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (December, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 2318 µg/m³Dec 127 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb12Good
Mar17Moderate
Apr13Moderate
May13Moderate
Jun18Moderate
Jul17Moderate
Aug14Moderate
Sep11Good
Oct9Good
Nov7Good
Dec7Good
Location & terrain

Where is Greenville?

Greenville sits at 35.6°N, 77.4°W, 59 ft above sea level, in United States. The nearest listed city is Kinston, 27 mi away.

Topography around Greenville

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

Within 2 miles, the terrain around Greenville has only modest variations in elevation — a maximum elevation change of 135 ft around an average of 49 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 190 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 531 ft.

The land around Greenville is covered by trees (49%) and artificial surfaces (28%) within 2 miles, trees (52%) and cropland (25%) within 10 miles, and trees (63%) and cropland (25%) within 50 miles.

2 miles
135 ft
10 miles
190 ft
50 miles
531 ft
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Kinston 27 mi · Wilson 32 mi · Rocky Mount 33 mi · Goldsboro 39 mi · New Bern 39 mi · Havelock 57 mi · Jacksonville 60 mi · Roanoke Rapids 61 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 Greenville (35.6127°, -77.3663°, elevation 59 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).