Hays weather in September

In September, Hays sees average daytime highs of 81°F and overnight lows near 57°F, with 2.0 in of rain across 6 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 85°F in the first days to 76°F by the end. The sky is clear or mostly clear about 60% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Hays's 1st-clearest and 6th-windiest month. For the whole year in context, see Hays's year-round climate.

Daytime high
81°
4th warmest
Overnight low
57°
9th coldest
Rainfall
2.0 in
6 wet days
Daylight
12 h 12 min
6:24 AM – 6:39 PM
Cloud cover
36%
1st clearest
Wind
10 mph
6th windiest
Solar energy
5.11 kWh/m²
Travel score
7.1
out of 10

Hays is city in Kansas, United States.

Density
1,001/km²
people per km²
Founded
1867

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 85°F in the first days to 76°F by the end.

A typical September day in Hays reaches about 81°F in the afternoon and slips back to 57°F overnight — a 23°F spread between the day's warmth and the night's chill. On most days the high lands between 68°F and 93°F. Set against its neighbours, September runs about 7°F cooler than August and about 13°F warmer than October.

40°60°80°100°151015202530
Avg high (°F)Avg low (°F)
18663
28663
38563
48562
58562
68462
78461
88361
98360
108360
118260
128259
138259
148158
158158
168057
178057
188056
197956
207956
217955
227855
237854
247854
257753
267753
277652
287652
297652
307551

How September really feels in Hays

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.

Hays weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan42° / 21°0.73.32.69.60.3
Feb46° / 24°1.04.12.910.51.3
Mar56° / 32°1.76.32.111.74.1
Apr65° / 42°2.68.30.9136.3
May75° / 53°4.210.90.114.16.7
Jun86° / 64°3.39.5014.75.2
Jul91° / 69°3.19.3014.43.9
Aug88° / 66°3.18.9013.54.8
Sep81° / 57°2.06012.37.1
Oct68° / 44°2.16.40.4117.2
Nov55° / 32°1.24.21.19.94.1
Dec43° / 23°1.13.92.79.30.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 29%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17228
27129
37129
47129
57030
67030
76931
86931
96832
106931
116931
126931
136931
146931
156931
166931
177030
187030
197129
207228
217327
227327
237327
247327
257426
267426
277426
287426
297426
307426

Chance of precipitation in September

Any precipitation

Hays gets around 2.0 in of rain over 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 22% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
122
222
322
421
521
621
721
821
921
1021
1121
1221
1322
1422
1522
1622
1722
1822
1922
2022
2122
2221
2321
2421
2521
2621
2722
2822
2922
3022

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 53% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
124263416
226263314
328263313
431263212
533263011
635252910
73825289
84025278
94225267
104324267
114524256
124723246
134923235
145023225
155322214
165422204
175721193
185821183
196020173
206120163
216319153
226618142
236817132
247016122
257215112
267315102
27751492
28781381
29791371
30811261

Wind in September

Winds average 10 mph in September.

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
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
2210light breeze
2310light 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 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 6:10 AM to 6:37 AM, and sunset from 7:04 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:107:04
212.86:117:02
312.86:127:01
412.86:136:59
512.76:146:57
612.76:156:56
712.66:166:54
812.66:176:52
912.66:186:51
1012.56:196:49
1112.56:206:47
1212.46:206:46
1312.46:216:44
1412.36:226:42
1512.36:236:41
1612.26:246:39
1712.26:256:37
1812.26:266:36
1912.16:276:34
2012.16:286:32
2112.06:296:31
2212.06:306:29
2311.96:316:27
2411.96:326:26
2511.96:336:24
2611.86:346:22
2711.86:346:21
2811.76:356:19
2911.76:366:18
3011.66:376:16

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.11 kWh/m².

For context, solar energy here swings from a low near 2.36 kWh/m² to a high of 6.92 kWh/m² in June across the year — September's 5.11 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.6Bright
45.6Bright
55.5Bright
65.5Bright
75.4Bright
85.4Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.1Bright
155.1Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
204.9Bright
214.9Bright
224.8Bright
234.8Bright
244.8Bright
254.7Bright
264.7Bright
274.6Bright
284.6Bright
294.5Bright
304.5Bright
Planning a trip in September

Hazard calendar for Hays

In seasonPeak

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

Hays's rainy season runs April–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Hays?

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

7.1
Sightseeing
2nd-best month of the year
7.4
Beach & pool
1st-best month of the year

September is one of the better times to visit Hays for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Hays in September

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

In September, Hays sees daytime highs around 81°F and nights near 57°F. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

UV index in Hays 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 Hays peaks around July 15 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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 15UV 10Dec 19UV 2
UV index (midday)Level
Jan3Moderate
Feb3Moderate
Mar5Moderate
Apr7Very high
May7Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep7High
Oct5High
Nov3Moderate
Dec2Low
Location & terrain

Where is Hays?

Hays sits at 38.9°N, 99.3°W, 2,021 ft above sea level, in United States. The nearest listed city is Great Bend, 47 mi away.

Topography around Hays

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

Within 2 miles, the terrain around Hays has only modest variations in elevation — a maximum elevation change of 118 ft around an average of 2,021 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 400 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,237 ft.

The land around Hays is covered by artificial surfaces (43%) and grassland (31%) within 2 miles, cropland (49%) and grassland (47%) within 10 miles, and grassland (50%) and cropland (48%) within 50 miles.

2 miles
118 ft
10 miles
400 ft
50 miles
1,237 ft
treesgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Great Bend 47 mi · Dodge City 86 mi · Salina 93 mi · Hutchinson 94 mi · Garden City 104 mi · Newton 122 mi · Kearney 126 mi · Hastings 128 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 Hays (38.8792°, -99.3268°, elevation 2,021 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).