Odessa weather in September

In September, Odessa sees average daytime highs of 86°F and overnight lows near 64°F, with 1.8 in of rain across 6.6 wet days and about 12.2 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 89°F in the first days to 83°F by the end. The sky is clear or mostly clear about 60% of the time in September, and the air most often feels humid.

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 Odessa's 5th-clearest and 12th-windiest month. For the whole year in context, see Odessa's year-round climate.

Daytime high
86°
5th warmest
Overnight low
64°
9th coldest
Rainfall
1.8 in
6.6 wet days
Daylight
12 h 12 min
6:38 AM – 6:50 PM
Cloud cover
36%
5th clearest
Wind
9 mph
12th windiest
Solar energy
5.63 kWh/m²
Travel score
5.8
out of 10

Odessa is city in Ector and Midland counties in Texas, United States, that is county seat of Ector County.

Density
972/km²
people per km²
Founded
1881

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 89°F in the first days to 83°F by the end.

A typical September day in Odessa reaches about 86°F in the afternoon and slips back to 64°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 77°F and 94°F. Set against its neighbours, September runs about 6°F cooler than August and about 8°F warmer than October.

60°80°100°151015202530
Avg high (°F)Avg low (°F)
18968
28968
38968
48867
58867
68867
78767
88767
98766
108766
118666
128666
138665
148665
158665
168565
178564
188564
198564
208563
218563
228463
238462
248462
258462
268461
278361
288361
298360
308360

How September really feels in Odessa

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.

Odessa weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan58° / 35°0.83.20.810.25.2
Feb63° / 38°0.83.80.410.86.5
Mar71° / 46°1.23.90.111.87.8
Apr79° / 53°1.14.30.112.88.0
May87° / 62°2.27.1013.65.4
Jun92° / 69°1.57.10143.6
Jul93° / 72°1.35.3013.93.4
Aug92° / 71°1.56.2013.23.8
Sep86° / 64°1.86.6012.25.8
Oct77° / 54°1.55011.28.0
Nov66° / 43°0.93.40.310.47.4
Dec58° / 35°1.03.40.7105.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 23%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17822
27921
37822
47723
57723
67624
77624
87624
97525
107525
117525
127426
137426
147426
157426
167426
177426
187525
197624
207624
217822
227822
238020
248020
258020
268218
278218
288218
298218
308218

Chance of precipitation in September

Any precipitation

Odessa gets around 1.8 in of rain over 6.6 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 22% and peaks near 26% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
122
222
323
423
524
624
725
825
925
1026
1126
1226
1326
1426
1526
1626
1725
1825
1924
2023
2122
2221
2319
2418
2517
2617
2716
2816
2916
3016

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
116343911
217343910
317334010
418334010
518324010
618324010
71931419
819314110
919304110
1020294110
1121294010
1222284011
1323273911
1425263811
1526263711
1628253611
1730253511
1832243311
1934233211
2037223110
2140212910
224221289
234520279
244719258
255019247
265218237
275418226
285618215
295718205
305918194

Wind in September

Winds average 9 mph in September, the calmest month.

Across September, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light breeze

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 6:29 AM to 6:47 AM, and sunset from 7:10 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:297:10
212.76:297:08
312.66:307:07
412.66:317:06
512.66:317:04
612.56:327:03
712.56:327:02
812.56:337:00
912.46:346:59
1012.46:346:58
1112.46:356:56
1212.36:366:55
1312.36:366:54
1412.36:376:52
1512.26:376:51
1612.26:386:50
1712.26:396:48
1812.16:396:47
1912.16:406:45
2012.16:416:44
2112.06:416:43
2212.06:426:41
2312.06:426:40
2411.96:436:39
2511.96:446:37
2611.96:446:36
2711.86:456:35
2811.86:466:33
2911.86:466:32
3011.76:476:31

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.63 kWh/m².

For context, solar energy here swings from a low near 3.25 kWh/m² to a high of 7.43 kWh/m² in June across the year — September's 5.63 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.0Intense
46.0Bright
55.9Bright
65.9Bright
75.8Bright
85.8Bright
95.8Bright
105.7Bright
115.7Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.3Bright
305.3Bright
Planning a trip in September

Is September a good time to visit Odessa?

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

5.8
Sightseeing
6th-best month of the year
7.7
Beach & pool
1st-best month of the year

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

What to pack for Odessa in September

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

In September, Odessa sees daytime highs around 86°F and nights near 64°F. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Odessa in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Odessa peaks around June 22 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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 22UV 12Dec 19UV 3
UV index (midday)Level
Jan4Moderate
Feb5High
Mar7High
Apr10Extreme
May10Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep9Very high
Oct6High
Nov5Moderate
Dec3Moderate
Location & terrain

Where is Odessa?

Odessa sits at 31.8°N, 102.4°W, 2,900 ft above sea level, in United States. The nearest listed city is West Odessa, 7.5 mi away.

Topography around Odessa

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

Within 2 miles, the terrain around Odessa has only modest variations in elevation — a maximum elevation change of 102 ft around an average of 2,904 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 354 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,138 ft.

The land around Odessa is covered by artificial surfaces (75%) within 2 miles, grassland (69%) within 10 miles, and grassland (81%) within 50 miles.

2 miles
102 ft
10 miles
354 ft
50 miles
1,138 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: West Odessa 7.5 mi · Midland 20 mi · Big Spring 59 mi · Hobbs 75 mi · Carlsbad 116 mi · San Angelo 117 mi · Lubbock 123 mi · Abilene 160 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 Odessa (31.8457°, -102.3676°, elevation 2,900 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).