Derry Village weather in September

In September, Derry Village sees average daytime highs of 73°F and overnight lows near 54°F, with 3.3 in of rain across 8.1 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 77°F in the first days to 68°F by the end. The sky is clear or mostly clear about 37% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Derry Village's 1st-clearest and 10th-windiest month. For the whole year in context, see Derry Village's year-round climate.

Daytime high
73°
4th warmest
Overnight low
54°
9th coldest
Rainfall
3.3 in
8.1 wet days
Daylight
12 h 18 min
5:31 AM – 5:48 PM
Cloud cover
55%
1st clearest
Wind
6 mph
10th windiest
Solar energy
4.11 kWh/m²
Travel score
7.0
out of 10

Derry Village is human settlement in Rockingham County, New Hampshire, United States of America.

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 77°F in the first days to 68°F by the end.

A typical September day in Derry Village reaches about 73°F in the afternoon and slips back to 54°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 63°F and 83°F. Set against its neighbours, September runs about 8°F cooler than August and about 12°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
17858
27858
37858
47758
57757
67657
77657
87656
97556
107556
117555
127455
137455
147354
157354
167354
177253
187253
197253
207152
217152
227051
237051
246951
256950
266950
276850
286849
296749
306749

How September really feels in Derry Village

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.

Derry Village weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan33° / 17°3.19.36.49.20.0
Feb35° / 18°3.08.66.310.20.0
Mar44° / 27°4.010.75.411.60.7
Apr56° / 38°3.810.41.513.13.8
May67° / 48°3.010.30.114.46.0
Jun77° / 58°3.511.1015.16.5
Jul82° / 63°3.310014.86.0
Aug81° / 61°3.29013.86.7
Sep73° / 54°3.38.1012.37.0
Oct60° / 43°3.99.50.310.85.0
Nov48° / 33°3.49.21.49.51.9
Dec38° / 24°4.110.15.18.90.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 46%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15644
25644
35545
45545
55545
65446
75446
85446
95545
105446
115446
125545
135545
145545
155545
165446
175446
185446
195446
205347
215347
225347
235347
245347
255149
265149
275149
285149
295149
305149

Chance of precipitation in September

Any precipitation

Derry Village gets around 3.3 in of rain over 8.1 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 27% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
124
224
325
425
526
626
727
827
927
1027
1128
1227
1327
1427
1527
1627
1727
1826
1926
2026
2127
2227
2327
2427
2528
2628
2729
2829
2929
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 58% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1412718121
2422718121
3432718111
4442618111
5452618101
6462517101
7472517101
848241791
949241791
1051231790
1152231780
1253221780
1354211780
1456211670
1557201670
1658191670
1760191560
1861181560
1962181460
2063171460
2165171350
2266161350
2367161250
2469161140
2570151140
2671151040
277315930
287315930
297514830
307614730

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 13 hours 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 84 minutes over September. Sunrise moves from 5:14 AM to 5:47 AM, and sunset from 6:16 PM to 5:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:146:16
213.05:156:14
312.95:166:12
412.95:186:10
512.85:196:09
612.85:206:07
712.75:216:05
812.75:226:03
912.65:236:01
1012.65:245:59
1112.55:255:57
1212.55:265:56
1312.45:285:54
1412.45:295:52
1512.35:305:50
1612.35:315:48
1712.25:325:46
1812.25:335:44
1912.15:345:43
2012.15:355:41
2112.05:375:39
2212.05:385:37
2311.95:395:35
2411.95:405:33
2511.85:415:31
2611.85:425:30
2711.75:435:28
2811.75:455:26
2911.65:465:24
3011.65:475:22

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.11 kWh/m².

For context, solar energy here swings from a low near 1.56 kWh/m² to a high of 5.88 kWh/m² in July across the year — September's 4.11 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.7Bright
34.7Bright
44.6Bright
54.6Bright
64.5Bright
74.5Bright
84.5Bright
94.4Bright
104.4Bright
114.3Bright
124.3Bright
134.2Bright
144.2Bright
154.2Bright
164.1Bright
174.1Bright
184.0Bright
194.0Moderate
204.0Moderate
213.9Moderate
223.9Moderate
233.8Moderate
243.8Moderate
253.7Moderate
263.7Moderate
273.6Moderate
283.6Moderate
293.5Moderate
303.5Moderate
Planning a trip in September

Hazard calendar for Derry Village

In seasonPeak

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

Derry Village 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 Derry Village?

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

7.0
Sightseeing
1st-best month of the year
5.2
Beach & pool
4th-best month of the year

September is one of the better times to visit Derry Village for general sightseeing.

What to pack for Derry Village in September

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

In September, Derry Village sees daytime highs around 73°F and nights near 54°F. Worth packing: light clothes and rain gear. About 8 days see rain.

light clothesrain gear

Sea temperature near Derry Village in September

The nearest coast averages about 62°F in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 35 mi away) is warmest in August at about 65°F and coldest in March near 39°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°F)Comfort
Jan42Bracing
Feb40Bracing
Mar39Bracing
Apr42Bracing
May49Bracing
Jun57Bracing
Jul64Cool
Aug65Cool
Sep62Cool
Oct56Bracing
Nov49Bracing
Dec46Bracing

UV index in Derry Village 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 Derry Village peaks around July 10 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighHighModerateLowJul 10UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun7High
Jul7Very high
Aug5Moderate
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Derry Village 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 Derry Village is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1715 µg/m³Nov 188 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb13Moderate
Mar13Moderate
Apr13Moderate
May14Moderate
Jun13Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct9Good
Nov8Good
Dec9Good
Location & terrain

Where is Derry Village?

Derry Village sits at 42.9°N, 71.3°W, 246 ft above sea level, in United States. The nearest listed city is Derry, 1.2 mi away.

Topography around Derry Village

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

Within 2 miles, the terrain around Derry Village has only modest variations in elevation — a maximum elevation change of 354 ft around an average of 371 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 3,176 ft.

The land around Derry Village is covered by trees (71%) within 2 miles, trees (81%) within 10 miles, and trees (74%) within 50 miles.

2 miles
354 ft
10 miles
584 ft
50 miles
3,176 ft
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Derry 1.2 mi · Salem 9.3 mi · Merrimack 9.3 mi · Manchester 9.9 mi · Bedford 11 mi · Nashua 12 mi · Methuen 13 mi · Haverhill 14 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 Derry Village (42.8918°, -71.312°, elevation 246 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). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).