Beaumont weather in September

In September, Beaumont sees average daytime highs of 86°F and overnight lows near 72°F, with 5.4 in of rain across 12.3 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 88°F in the first days to 84°F by the end. The sky is clear or mostly clear about 44% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Beaumont's 3rd-clearest and 10th-windiest month. For the whole year in context, see Beaumont's year-round climate.

Daytime high
86°
4th warmest
Overnight low
72°
9th coldest
Rainfall
5.4 in
12.3 wet days
Daylight
12 h 12 min
6:05 AM – 6:16 PM
Cloud cover
50%
3rd clearest
Wind
6 mph
10th windiest
Solar energy
5.05 kWh/m²
Travel score
4.8
out of 10

Beaumont is city and county seat of Jefferson County, State of Texas, United States.

Density
523/km²
people per km²
Founded
1835

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 88°F in the first days to 84°F by the end.

A typical September day in Beaumont reaches about 86°F in the afternoon and slips back to 72°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 81°F and 91°F. Set against its neighbours, September runs about 3°F cooler than August and about 7°F warmer than October.

50°60°70°80°90°151015202530
Avg high (°F)Avg low (°F)
18875
28875
38874
48874
58874
68874
78874
88774
98774
108774
118773
128773
138773
148773
158773
168672
178672
188672
198672
208671
218571
228571
238570
248570
258570
268469
278469
288469
298468
308368

How September really feels in Beaumont

Once humidity and wind are folded in, September averages 21 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
21
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Beaumont weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan61° / 46°4.79.810.35.1
Feb64° / 49°3.48.710.95.9
Mar70° / 56°3.99.511.86.6
Apr76° / 62°4.49.412.77.0
May83° / 69°3.810.713.56.0
Jun87° / 75°5.215.113.94.2
Jul89° / 77°4.215.913.73.6
Aug89° / 76°4.815.713.13.6
Sep86° / 72°5.412.312.24.8
Oct79° / 63°4.18.811.37.1
Nov70° / 53°4.38.610.56.8
Dec63° / 48°4.79.510.15.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% 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 (%)
15149
25149
35149
45347
55347
65347
75347
85446
95446
105545
115644
125644
135743
145743
155743
165842
175941
185941
196139
206238
216337
226436
236634
246733
256832
266832
276931
287030
297030
307030

Chance of precipitation in September

Any precipitation

Beaumont gets around 5.4 in of rain over 12.3 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 42% and peaks near 53% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
153
252
352
451
550
650
749
848
948
1047
1146
1246
1345
1444
1543
1642
1741
1840
1939
2038
2136
2235
2334
2433
2532
2631
2731
2830
2930
3029

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 44% of days. Sticky, muggy-or-worse air turns up on roughly 83% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101594837
2015104836
3015114834
4015114934
5116124832
6116134931
7126134930
8126144929
9126144928
10126144828
11136154827
12136154826
13237154825
14247164725
15247164824
16247164723
17357174722
18357174621
19467184520
20568184419
21678194218
22778194117
23889204016
24989203815
2510910213714
2610910213613
2711911213512
28121011223411
29131011223310
3014101222339

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
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 36 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 54 minutes over September. Sunrise moves from 5:57 AM to 6:13 AM, and sunset from 6:35 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:576:35
212.65:586:34
312.65:586:33
412.55:596:32
512.55:596:30
612.56:006:29
712.56:006:28
812.46:016:26
912.46:016:25
1012.46:026:24
1112.36:036:23
1212.36:036:21
1312.36:046:20
1412.26:046:19
1512.26:056:17
1612.26:056:16
1712.16:066:15
1812.16:066:13
1912.16:076:12
2012.16:086:11
2112.06:086:10
2212.06:096:08
2312.06:096:07
2411.96:106:06
2511.96:106:04
2611.96:116:03
2711.86:126:02
2811.86:126:01
2911.86:135:59
3011.76:135:58

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.05 kWh/m².

For context, solar energy here swings from a low near 2.67 kWh/m² to a high of 6.21 kWh/m² in July across the year — September's 5.05 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
Planning a trip in September

Hazard calendar for Beaumont

In seasonPeak

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

Beaumont 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 Beaumont?

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

4.8
Sightseeing
9th-best month of the year
6.5
Beach & pool
3rd-best month of the year

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

What to pack for Beaumont in September

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

In September, Beaumont sees daytime highs around 86°F and nights near 72°F. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Beaumont in September

The nearest coast averages about 84°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 32 mi away) is warmest in August at about 86°F and coldest in January near 58°F.

It's comfortable for a long swim from Apr 3 to Nov 18 — about 7.6 months when the water holds above 68°F.

50°60°70°80°90°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan58Bracing
Feb59Bracing
Mar64Cool
Apr71Refreshing
May78Warm
Jun84Tropical
Jul86Tropical
Aug86Tropical
Sep84Tropical
Oct77Warm
Nov69Refreshing
Dec61Cool

UV index in Beaumont in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Beaumont peaks around July 14 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 14UV 10Dec 20UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar7High
Apr10Very high
May10Extreme
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov5Moderate
Dec4Moderate

Air quality in Beaumont 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 Beaumont is worst in July — around 22 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (December, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1522 µg/m³Dec 168 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar12Good
Apr11Good
May13Moderate
Jun18Moderate
Jul22Moderate
Aug17Moderate
Sep14Moderate
Oct11Good
Nov9Good
Dec8Good
Location & terrain

Where is Beaumont?

Beaumont sits at 30.1°N, 94.1°W, 16 ft above sea level, in United States. The nearest listed city is Nederland, 9.9 mi away.

Topography around Beaumont

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

Within 2 miles, the terrain around Beaumont has only modest variations in elevation — a maximum elevation change of 66 ft around an average of 23 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 144 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 400 ft.

The land around Beaumont is covered by trees (40%) and artificial surfaces (32%) within 2 miles, trees (54%) and grassland (25%) within 10 miles, and trees (49%) and water (21%) within 50 miles.

2 miles
66 ft
10 miles
144 ft
50 miles
400 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Nederland 9.9 mi · Groves 14 mi · Port Arthur 17 mi · Orange 22 mi · Sulphur 45 mi · Lake Charles 54 mi · Baytown 58 mi · La Porte 62 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 Beaumont (30.0861°, -94.1018°, elevation 16 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).