Odenton weather in September

In September, Odenton sees average daytime highs of 78°F and overnight lows near 63°F, with 4.5 in of rain across 9.2 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 82°F in the first days to 74°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 Odenton's 3rd-clearest and 9th-windiest month. For the whole year in context, see Odenton's year-round climate.

Daytime high
78°
4th warmest
Overnight low
63°
9th coldest
Rainfall
4.5 in
9.2 wet days
Daylight
12 h 18 min
5:54 AM – 6:09 PM
Cloud cover
56%
3rd clearest
Wind
6 mph
9th windiest
Solar energy
4.3 kWh/m²
Travel score
6.9
out of 10

Odenton is census-designated place in Anne Arundel County, Maryland, United States.

Density
970/km²
people per km²
Founded
1868

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 82°F in the first days to 74°F by the end.

A typical September day in Odenton reaches about 78°F in the afternoon and slips back to 63°F overnight — a 15°F spread between the day's warmth and the night's chill. On most days the high lands between 69°F and 87°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)
18268
28267
38267
48267
58167
68166
78166
88065
98065
108065
118064
127964
137964
147863
157863
167863
177762
187762
197762
207661
217661
227661
237560
247560
257560
267459
277459
287458
297358
307358

How September really feels in Odenton

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.

Odenton 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
Jan43° / 29°3.18.62.89.60.4
Feb46° / 31°2.98.72.810.51.1
Mar54° / 38°4.010.61.811.73.2
Apr65° / 48°3.410.20.2135.8
May74° / 57°3.811014.16.6
Jun83° / 67°3.811.1014.75.7
Jul87° / 71°4.612.2014.54.6
Aug84° / 70°4.110.9013.55.3
Sep78° / 63°4.59.2012.36.9
Oct67° / 51°3.57.80116.6
Nov56° / 41°2.97.50.19.94.0
Dec47° / 34°3.68.71.69.31.5

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 16% of September, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15446
25446
35446
45347
55347
65347
75347
85347
95347
105347
115347
125248
135248
145248
155149
165050
175050
185050
194951
204951
214951
224951
235050
245050
255149
265149
275149
285347
295347
305347

Chance of precipitation in September

Any precipitation

Odenton gets around 4.5 in of rain over 9.2 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 (%)
131
231
331
431
531
631
731
830
930
1030
1129
1229
1328
1428
1527
1627
1727
1827
1928
2028
2128
2229
2329
2429
2529
2629
2728
2828
2928
3028

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 29% of days. Sticky, muggy-or-worse air turns up on roughly 29% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
111162626201
212162625191
313172624191
414172623181
516172622181
617182622171
718192621161
819192620151
920202620141
1021202620131
1122202619121
1223202519111
1325202519100
142620251990
152720251980
162820251970
173020251960
183120241960
193220241950
203420241940
213519231940
223719231830
233819221830
244018211820
254218211720
264318201720
274518191620
284717191620
294917181520
305017171420

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
226calm
236calm
246calm
256calm
266calm
276calm
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 5:40 AM to 6:07 AM, and sunset from 6:33 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:406:33
212.95:416:32
312.85:416:30
412.85:426:29
512.75:436:27
612.75:446:25
712.65:456:24
812.65:466:22
912.65:476:20
1012.55:486:19
1112.55:496:17
1212.45:506:15
1312.45:516:14
1412.35:526:12
1512.35:536:10
1612.35:546:09
1712.25:556:07
1812.25:556:05
1912.15:566:04
2012.15:576:02
2112.05:586:00
2212.05:595:59
2311.96:005:57
2411.96:015:55
2511.96:025:54
2611.86:035:52
2711.86:045:50
2811.76:055:49
2911.76:065:47
3011.66:075:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.3 kWh/m².

For context, solar energy here swings from a low near 1.95 kWh/m² to a high of 6.15 kWh/m² in June across the year — September's 4.3 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.7Bright
54.7Bright
64.7Bright
74.6Bright
84.6Bright
94.6Bright
104.5Bright
114.5Bright
124.5Bright
134.4Bright
144.4Bright
154.3Bright
164.3Bright
174.3Bright
184.2Bright
194.2Bright
204.2Bright
214.1Bright
224.1Bright
234.0Bright
244.0Bright
254.0Moderate
263.9Moderate
273.9Moderate
283.9Moderate
293.8Moderate
303.8Moderate
Planning a trip in September

Hazard calendar for Odenton

In seasonPeak

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

Odenton 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 Odenton?

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
6.4
Beach & pool
4th-best month of the year

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

What to pack for Odenton in September

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

In September, Odenton sees daytime highs around 78°F and nights near 63°F. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

Sea temperature near Odenton in September

The nearest coast averages about 74°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 17 mi away) is warmest in August at about 78°F and coldest in February near 36°F.

It's comfortable for a long swim from Jun 16 to Oct 5 — about 3.7 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan38Bracing
Feb36Bracing
Mar40Bracing
Apr47Bracing
May58Bracing
Jun68Refreshing
Jul76Warm
Aug78Warm
Sep74Refreshing
Oct65Cool
Nov53Bracing
Dec44Bracing

UV index in Odenton 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 Odenton peaks around July 10 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 10UV 9Dec 19UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7High
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Odenton 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 Odenton is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1216 µg/m³Nov 118 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar13Moderate
Apr13Moderate
May15Moderate
Jun16Moderate
Jul17Moderate
Aug14Moderate
Sep12Good
Oct9Good
Nov8Good
Dec10Good
Location & terrain

Where is Odenton?

Odenton sits at 39.1°N, 76.7°W, 154 ft above sea level, in United States. The nearest listed city is Severn, 3.7 mi away.

Topography around Odenton

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

Within 2 miles, the terrain around Odenton has only modest variations in elevation — a maximum elevation change of 217 ft around an average of 180 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 489 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,709 ft.

The land around Odenton is covered by trees (65%) and artificial surfaces (20%) within 2 miles, trees (71%) within 10 miles, and trees (54%) within 50 miles.

2 miles
217 ft
10 miles
489 ft
50 miles
1,709 ft
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Severn 3.7 mi · South Gate 5.0 mi · Crofton 5.6 mi · Maryland City 6.2 mi · Glen Burnie 6.8 mi · Pasadena 7.5 mi · Ferndale 7.5 mi · Hanover 7.5 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 Odenton (39.084°, -76.7002°, elevation 154 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).