Clarksdale weather in September

In September, Clarksdale sees average daytime highs of 85°F and overnight lows near 66°F, with 3.4 in of rain across 6.5 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 88°F in the first days to 81°F by the end. The sky is clear or mostly clear about 51% 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 Clarksdale's 1st-clearest and 9th-windiest month. For the whole year in context, see Clarksdale's year-round climate.

Daytime high
85°
4th warmest
Overnight low
66°
9th coldest
Rainfall
3.4 in
6.5 wet days
Daylight
12 h 12 min
5:50 AM – 6:03 PM
Cloud cover
43%
1st clearest
Wind
6 mph
9th windiest
Solar energy
5.06 kWh/m²
Travel score
5.9
out of 10

Clarksdale is city in and the county seat of Coahoma County, Mississippi, United States of America.

Density
346/km²
people per km²
Founded
1848

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 81°F by the end.

A typical September day in Clarksdale reaches about 85°F in the afternoon and slips back to 66°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 77°F and 92°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)
18971
28871
38871
48870
58870
68870
78769
88769
98769
108768
118668
128668
138667
148667
158567
168566
178566
188566
198465
208465
218365
228364
238364
248363
258263
268262
278262
288162
298161
308061

How September really feels in Clarksdale

Once humidity and wind are folded in, September averages 6 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
6
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.

Clarksdale weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan52° / 35°4.69.80.6102.8
Feb56° / 38°4.69.90.610.73.7
Mar65° / 46°5.211.70.211.75.6
Apr73° / 54°5.510.1012.86.8
May81° / 63°5.310.7013.86.3
Jun87° / 71°3.710014.24.6
Jul90° / 74°3.610.20143.9
Aug90° / 73°3.18.9013.34.1
Sep85° / 66°3.46.5012.25.9
Oct74° / 55°4.37.6011.17.4
Nov63° / 44°4.08.9010.25.7
Dec54° / 38°5.3100.29.83.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 34%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16535
26436
36436
46436
56535
66535
76535
86535
96535
106535
116535
126535
136535
146535
156535
166535
176436
186436
196535
206634
216634
226733
236832
246931
257030
267030
277129
287129
297129
307228

Chance of precipitation in September

Any precipitation

Clarksdale gets around 3.4 in of rain over 6.5 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 24% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
124
224
323
423
523
623
723
822
922
1022
1122
1222
1323
1423
1523
1624
1724
1824
1924
2024
2123
2223
2322
2422
2521
2621
2720
2820
2919
3019

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 27% of days. Sticky, muggy-or-worse air turns up on roughly 49% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1271931391
2381931381
3391931361
44102031351
55102030341
65112030321
76122030311
87122031300
98132030280
109142030270
1110142030250
1211152030240
1312152030230
1413152030220
1514162030210
1615162029200
1716162029190
1818162028180
1919162027170
2021162027160
2123162026150
2224162125140
2326162124130
2428162123120
2530162022110
2632162021110
2733162021100
283516202090
293616201980
303817201970

Wind in September

Winds average 6 mph in September.

Across September, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
15calm
25calm
35calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 5:40 AM to 6:01 AM, and sunset from 6:24 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:406:24
212.75:406:23
312.75:416:22
412.65:426:20
512.65:426:19
612.65:436:17
712.55:446:16
812.55:456:15
912.55:456:13
1012.45:466:12
1112.45:476:10
1212.45:476:09
1312.35:486:07
1412.35:496:06
1512.25:506:04
1612.25:506:03
1712.25:516:01
1812.15:526:00
1912.15:525:59
2012.15:535:57
2112.05:545:56
2212.05:555:54
2312.05:555:53
2411.95:565:51
2511.95:575:50
2611.85:585:48
2711.85:585:47
2811.85:595:45
2911.76:005:44
3011.76:015:43

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.06 kWh/m².

For context, solar energy here swings from a low near 2.26 kWh/m² to a high of 6.51 kWh/m² in June across the year — September's 5.06 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.4Bright
45.4Bright
55.4Bright
65.3Bright
75.3Bright
85.3Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.1Bright
145.1Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
194.9Bright
204.9Bright
214.9Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
Planning a trip in September

Is September a good time to visit Clarksdale?

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

5.9
Sightseeing
4th-best month of the year
7.5
Beach & pool
1st-best month of the year

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

What to pack for Clarksdale in September

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

In September, Clarksdale sees daytime highs around 85°F and nights near 66°F. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Clarksdale 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 Clarksdale peaks around June 19 at about 10 (very high) — 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 — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 19UV 10Dec 19UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar7High
Apr8Very high
May9Very high
Jun10Very high
Jul9Very high
Aug9Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in Clarksdale 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 Clarksdale is worst in July — around 20 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (December, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1419 µg/m³Dec 176 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar11Good
Apr11Good
May14Moderate
Jun18Moderate
Jul20Moderate
Aug16Moderate
Sep12Moderate
Oct8Good
Nov7Good
Dec6Good
Location & terrain

Where is Clarksdale?

Clarksdale sits at 34.2°N, 90.6°W, 174 ft above sea level, in United States. The nearest listed city is Greenwood, 52 mi away.

Topography around Clarksdale

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

Within 2 miles, the terrain around Clarksdale has only modest variations in elevation — a maximum elevation change of 95 ft around an average of 171 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 141 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 535 ft.

The land around Clarksdale is covered by trees (36%), cropland (27%) and grassland (22%) within 2 miles, cropland (74%) and trees (20%) within 10 miles, and cropland (52%) and trees (40%) within 50 miles.

2 miles
95 ft
10 miles
141 ft
50 miles
535 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Greenwood 52 mi · Hernando 54 mi · Horn Lake 60 mi · Oxford 61 mi · Greenville 62 mi · Southaven 63 mi · Olive Branch 68 mi · New South Memphis 68 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 Clarksdale (34.2001°, -90.5709°, elevation 174 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).