Willingboro weather in September

In September, Willingboro sees average daytime highs of 77°F and overnight lows near 61°F, with 3.8 in of rain across 9.1 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 81°F in the first days to 73°F by the end. The sky is clear or mostly clear about 36% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Willingboro's 2nd-clearest and 10th-windiest month. For the whole year in context, see Willingboro's year-round climate.

Daytime high
77°
4th warmest
Overnight low
61°
9th coldest
Rainfall
3.8 in
9.1 wet days
Daylight
12 h 18 min
5:46 AM – 6:02 PM
Cloud cover
56%
2nd clearest
Wind
6 mph
10th windiest
Solar energy
4.26 kWh/m²
Travel score
6.9
out of 10

Willingboro is township in Burlington County, New Jersey, United States.

Founded
1688

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 81°F in the first days to 73°F by the end.

A typical September day in Willingboro reaches about 77°F in the afternoon and slips back to 61°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 69°F and 86°F. Set against its neighbours, September runs about 6°F cooler than August and about 11°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
18265
28265
38165
48165
58164
68164
78064
88063
98063
107963
117962
127962
137862
147861
157861
167760
177760
187760
197659
207659
217659
227558
237558
247458
257457
267457
277357
287356
297356
307255

How September really feels in Willingboro

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.

Willingboro weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan41° / 27°3.29.33.69.50.1
Feb44° / 28°3.08.93.310.40.7
Mar52° / 35°4.110.22.411.72.7
Apr63° / 45°3.510.60.4135.3
May72° / 55°3.411.3014.26.4
Jun81° / 64°3.811014.86.0
Jul86° / 70°3.911.2014.64.9
Aug84° / 68°4.110.9013.65.5
Sep77° / 61°3.89.1012.36.9
Oct66° / 49°3.68.5010.96.3
Nov55° / 39°2.97.90.29.83.8
Dec46° / 32°3.99.41.99.21.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% 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 49%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15347
25347
35446
45446
55446
65446
75347
85347
95347
105347
115347
125347
135347
145248
155248
165149
175050
185050
194852
204852
214753
224753
234753
244852
254852
264852
274852
284951
295050
305050

Chance of precipitation in September

Any precipitation

Willingboro gets around 3.8 in of rain over 9.1 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 31% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
128
228
328
428
528
628
729
829
929
1029
1128
1228
1328
1428
1528
1628
1728
1829
1929
2029
2130
2230
2330
2431
2531
2630
2730
2830
2930
3030

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 24% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11921232414
22021222413
32021222313
42122222213
52222222213
62322212112
72422212012
82622212011
92722211911
102822211910
112922211810
12312221189
13322121178
14342121178
15352121167
16362121166
17372120166
18392120155
19402120155
20412119154
21422119154
22432118143
23442118143
24462117142
25472117132
26482116132
27502016132
28522015121
29531915121
30551914111

Wind in September

Winds average 6 mph in September.

Across September, daily wind ranges from about 6 mph on the calmest days to 7 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
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 5:31 AM to 6:00 AM, and sunset from 6:27 PM to 5:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:316:27
212.95:326:25
312.85:336:24
412.85:346:22
512.85:356:20
612.75:366:19
712.75:376:17
812.65:386:15
912.65:396:14
1012.55:406:12
1112.55:416:10
1212.45:426:08
1312.45:436:07
1412.35:446:05
1512.35:456:03
1612.35:466:02
1712.25:476:00
1812.25:485:58
1912.15:495:56
2012.15:505:55
2112.05:515:53
2212.05:525:51
2311.95:535:50
2411.95:545:48
2511.95:555:46
2611.85:565:44
2711.85:575:43
2811.75:585:41
2911.75:595:39
3011.66:005:38

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.26 kWh/m².

For context, solar energy here swings from a low near 1.84 kWh/m² to a high of 6.08 kWh/m² in June across the year — September's 4.26 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.7Bright
54.7Bright
64.6Bright
74.6Bright
84.6Bright
94.5Bright
104.5Bright
114.5Bright
124.4Bright
134.4Bright
144.3Bright
154.3Bright
164.3Bright
174.2Bright
184.2Bright
194.1Bright
204.1Bright
214.1Bright
224.0Bright
234.0Moderate
243.9Moderate
253.9Moderate
263.9Moderate
273.8Moderate
283.8Moderate
293.8Moderate
303.7Moderate
Planning a trip in September

Hazard calendar for Willingboro

In seasonPeak

In September, Willingboro sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

Willingboro sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Willingboro?

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
6.3
Beach & pool
4th-best month of the year

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

What to pack for Willingboro in September

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

In September, Willingboro sees daytime highs around 77°F and nights near 61°F. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

UV index in Willingboro in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Willingboro peaks around July 11 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 11UV 8Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Willingboro 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 Willingboro is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1317 µg/m³Nov 129 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar15Moderate
Apr13Moderate
May15Moderate
Jun16Moderate
Jul18Moderate
Aug15Moderate
Sep12Good
Oct9Good
Nov9Good
Dec10Good
Location & terrain

Where is Willingboro?

Willingboro sits at 40.0°N, 74.9°W, 36 ft above sea level, in United States. The nearest listed city is Mount Laurel, 6.8 mi away.

Topography around Willingboro

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

Within 2 miles, the terrain around Willingboro has only modest variations in elevation — a maximum elevation change of 151 ft around an average of 59 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 318 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,421 ft.

The land around Willingboro is covered by trees (53%) within 2 miles, trees (48%) within 10 miles, and trees (64%) within 50 miles.

2 miles
151 ft
10 miles
318 ft
50 miles
1,421 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Mount Laurel 6.8 mi · Bensalem 6.8 mi · Parkwood Manor 6.8 mi · Maple Shade 8.1 mi · Holmesburg 8.7 mi · Levittown 9.3 mi · Vincentown 9.3 mi · Tacony 9.3 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 Willingboro (40.0279°, -74.8691°, elevation 36 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).