Ennis weather in September

In September, Ennis sees average daytime highs of 89°F and overnight lows near 69°F, with 2.4 in of rain across 6.1 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 92°F in the first days to 85°F by the end. The sky is clear or mostly clear about 56% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 42 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Ennis's 1st-clearest and 11th-windiest month. For the whole year in context, see Ennis's year-round climate.

Daytime high
89°
4th warmest
Overnight low
69°
9th coldest
Rainfall
2.4 in
6.1 wet days
Daylight
12 h 12 min
6:15 AM – 6:27 PM
Cloud cover
41%
1st clearest
Wind
7 mph
11th windiest
Solar energy
5.16 kWh/m²
Travel score
4.9
out of 10

Ennis is city in Ellis County, Texas, United States.

Density
257/km²
people per km²
Founded
1872

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 92°F in the first days to 85°F by the end.

A typical September day in Ennis reaches about 89°F in the afternoon and slips back to 69°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 80°F and 96°F. Set against its neighbours, September runs about 6°F cooler than August and about 10°F warmer than October.

60°80°100°151015202530
Avg high (°F)Avg low (°F)
19274
29273
39273
49173
59173
69172
79172
89072
99072
109071
118971
128971
138970
148970
158970
168869
178869
188869
198869
208768
218768
228767
238767
248667
258666
268666
278665
288565
298565
308564

How September really feels in Ennis

Once humidity and wind are folded in, September averages 15 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
15
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.

Ennis weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan58° / 39°2.97.310.14.5
Feb61° / 42°3.27.810.85.4
Mar68° / 49°3.89.411.86.5
Apr76° / 56°4.39.212.87.0
May83° / 65°4.611.113.65.7
Jun90° / 73°3.18.514.14.0
Jul94° / 76°1.76.513.93.0
Aug95° / 76°2.15.913.22.9
Sep89° / 69°2.46.112.24.9
Oct78° / 58°4.27.911.27.2
Nov67° / 48°3.27.210.36.8
Dec59° / 41°3.67.49.95.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17327
27228
37129
47129
57030
67030
76931
86832
96733
106733
116733
126733
136634
146634
156634
166733
176733
186832
196931
207030
217129
227228
237327
247426
257525
267624
277624
287624
297624
307525

Chance of precipitation in September

Any precipitation

Ennis gets around 2.4 in of rain over 6.1 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 21% and peaks near 24% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
124
224
324
424
524
624
724
824
924
1024
1123
1223
1323
1422
1522
1621
1721
1820
1919
2019
2118
2217
2317
2416
2516
2615
2715
2816
2916
3017

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 30% of days. Sticky, muggy-or-worse air turns up on roughly 53% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1472040290
2582038280
3682037280
4792036280
5792036280
6892035270
7992035271
8991934271
91091934271
101191934271
111191834271
121291834261
1312101833261
1413101833251
1514101832251
1615101832241
1716111831231
1817111931221
1918111930211
2020121929201
2121121928191
2223131927181
2326131926160
2427141924150
2529141923140
2630152022130
2732152021120
2833152020110
2934162019110
3035162019100

Wind in September

Winds average 7 mph in September.

Across September, daily wind ranges from about 7 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 42 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 60 minutes over September. Sunrise moves from 6:05 AM to 6:24 AM, and sunset from 6:47 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:056:47
212.76:066:46
312.66:076:44
412.66:076:43
512.66:086:42
612.56:096:40
712.56:096:39
812.56:106:38
912.46:106:36
1012.46:116:35
1112.46:126:34
1212.36:126:32
1312.36:136:31
1412.36:146:29
1512.26:146:28
1612.26:156:27
1712.26:166:25
1812.16:166:24
1912.16:176:23
2012.16:186:21
2112.06:186:20
2212.06:196:18
2312.06:206:17
2411.96:206:16
2511.96:216:14
2611.96:226:13
2711.86:226:11
2811.86:236:10
2911.86:246:09
3011.76:246:07

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.16 kWh/m².

For context, solar energy here swings from a low near 2.59 kWh/m² to a high of 6.79 kWh/m² in July across the year — September's 5.16 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.5Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.2Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
264.9Bright
274.9Bright
284.9Bright
294.8Bright
304.8Bright
Planning a trip in September

Is September a good time to visit Ennis?

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

4.9
Sightseeing
8th-best month of the year
7.4
Beach & pool
1st-best month of the year

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

What to pack for Ennis in September

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

In September, Ennis sees daytime highs around 89°F and nights near 69°F. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

UV index in Ennis in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ennis peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 10Dec 21UV 3
UV index (midday)Level
Jan4Moderate
Feb5High
Mar6High
Apr9Very high
May10Very high
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Ennis 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 Ennis is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (October, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1519 µg/m³Oct 248 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar11Good
Apr11Good
May15Moderate
Jun17Moderate
Jul19Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec8Good
Location & terrain

Where is Ennis?

Ennis sits at 32.3°N, 96.6°W, 538 ft above sea level, in United States. The nearest listed city is Waxahachie, 14 mi away.

Topography around Ennis

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

Within 2 miles, the terrain around Ennis has only modest variations in elevation — a maximum elevation change of 125 ft around an average of 505 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 272 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 810 ft.

The land around Ennis is covered by grassland (42%), trees (28%) and artificial surfaces (23%) within 2 miles, grassland (58%) within 10 miles, and grassland (49%) and trees (28%) within 50 miles.

2 miles
125 ft
10 miles
272 ft
50 miles
810 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Waxahachie 14 mi · Corsicana 19 mi · Lancaster 20 mi · Seagoville 22 mi · DeSoto 22 mi · Midlothian 24 mi · Cedar Hill 26 mi · Balch Springs 27 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 Ennis (32.3293°, -96.6253°, elevation 538 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).