Brentwood Estates weather in September

In September, Brentwood Estates sees average daytime highs of 82°F and overnight lows near 62°F, with 3.2 in of rain across 7.9 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 86°F in the first days to 78°F by the end. The sky is clear or mostly clear about 43% 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 Brentwood Estates's 2nd-clearest and 9th-windiest month. For the whole year in context, see Brentwood Estates's year-round climate.

Daytime high
82°
4th warmest
Overnight low
62°
9th coldest
Rainfall
3.2 in
7.9 wet days
Daylight
12 h 12 min
5:35 AM – 5:48 PM
Cloud cover
49%
2nd clearest
Wind
5 mph
9th windiest
Solar energy
4.71 kWh/m²
Travel score
6.4
out of 10

Brentwood Estates is human settlement in 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 86°F in the first days to 78°F by the end.

A typical September day in Brentwood Estates reaches about 82°F in the afternoon and slips back to 62°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 73°F and 91°F. Set against its neighbours, September runs about 5°F cooler than August and about 11°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
18667
28667
38667
48667
58566
68566
78566
88565
98465
108465
118464
128464
138364
148363
158363
168262
178262
188262
198261
208161
218161
228060
238060
248059
257959
267958
277958
287858
297857
307857

How September really feels in Brentwood Estates

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.

Brentwood Estates weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan47° / 31°4.110.31.49.81.6
Feb52° / 34°4.610.21.610.62.6
Mar60° / 41°5.011.30.711.74.8
Apr70° / 50°5.010.7012.96.3
May78° / 60°4.712.3013.96.4
Jun85° / 68°4.112.3014.44.9
Jul88° / 71°4.313.1014.24.0
Aug88° / 70°3.310.5013.44.5
Sep82° / 62°3.27.9012.26.4
Oct71° / 51°3.57.8011.17.1
Nov59° / 41°3.890.210.14.9
Dec50° / 35°5.110.50.59.62.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% 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 41%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15842
25842
35842
45941
55941
65941
75941
85941
95941
105941
115941
125842
135842
145743
155743
165842
175743
185743
195743
205743
215941
225941
236040
246139
256238
266337
276337
286436
296535
306634

Chance of precipitation in September

Any precipitation

Brentwood Estates gets around 3.2 in of rain over 7.9 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 26% and peaks near 28% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
128
228
328
428
527
627
727
826
926
1026
1125
1225
1325
1425
1526
1626
1727
1827
1927
2027
2127
2227
2326
2426
2525
2625
2724
2824
2923
3023

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 26% 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 (%)
1410223925
2510233823
3611243822
4711253720
5812263619
6913273517
71013283415
81114283314
91215293213
101315293112
111516293011
121616292910
131717292810
14181829279
15191828269
16211928258
17221927248
18231927238
19252026227
20262026217
21282025206
22302025196
23322124186
24332123175
25352123165
26372122154
27392221144
28402221144
29422220133
30432219123

Wind in September

Winds average 5 mph in September.

Across September, daily wind ranges from about 5 mph on the calmest days to 5 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
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 5:23 AM to 5:46 AM, and sunset from 6:11 PM to 5:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:236:11
212.85:246:09
312.75:246:08
412.75:256:06
512.75:266:05
612.65:276:03
712.65:286:02
812.55:286:00
912.55:295:59
1012.55:305:57
1112.45:315:56
1212.45:325:54
1312.35:325:53
1412.35:335:51
1512.35:345:50
1612.25:355:48
1712.25:355:47
1812.15:365:45
1912.15:375:44
2012.15:385:42
2112.05:395:40
2212.05:405:39
2312.05:405:37
2411.95:415:36
2511.95:425:34
2611.85:435:33
2711.85:445:31
2811.85:445:30
2911.75:455:28
3011.75:465:27

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.71 kWh/m².

For context, solar energy here swings from a low near 2.01 kWh/m² to a high of 6.2 kWh/m² in June across the year — September's 4.71 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.1Bright
35.1Bright
45.1Bright
55.0Bright
65.0Bright
75.0Bright
84.9Bright
94.9Bright
104.9Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.7Bright
164.7Bright
174.7Bright
184.6Bright
194.6Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.4Bright
254.4Bright
264.4Bright
274.4Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in September

Is September a good time to visit Brentwood Estates?

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

6.4
Sightseeing
2nd-best month of the year
7.1
Beach & pool
1st-best month of the year

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

What to pack for Brentwood Estates in September

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

In September, Brentwood Estates sees daytime highs around 82°F and nights near 62°F. Pack light clothes. Worth having: sun protection. About 8 days see rain.

light clothessun protection

UV index in Brentwood Estates 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 Brentwood Estates peaks around July 12 at about 10 (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 12UV 10Dec 20UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep7Very high
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Brentwood Estates 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 Brentwood Estates is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1518 µg/m³Dec 147 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar10Good
Apr10Good
May13Moderate
Jun16Moderate
Jul19Moderate
Aug15Moderate
Sep11Good
Oct7Good
Nov7Good
Dec7Good
Location & terrain

Where is Brentwood Estates?

Brentwood Estates sits at 36.0°N, 86.8°W, 732 ft above sea level, in United States. The nearest listed city is Brentwood, 0.6 mi away.

Topography around Brentwood Estates

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

Within 2 miles, the terrain around Brentwood Estates has only modest variations in elevation — a maximum elevation change of 627 ft around an average of 728 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 919 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,919 ft.

The land around Brentwood Estates is covered by trees (58%) and grassland (25%) within 2 miles, trees (62%) within 10 miles, and trees (63%) and grassland (25%) within 50 miles.

2 miles
627 ft
10 miles
919 ft
50 miles
1,919 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Brentwood 0.6 mi · Franklin 8.7 mi · Nashville 9.9 mi · La Vergne 11 mi · Hermitage 15 mi · Smyrna 15 mi · Mount Juliet 19 mi · Spring Hill 21 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 Brentwood Estates (36.0251°, -86.7792°, elevation 732 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).