Emporia weather in September

In September, Emporia sees average daytime highs of 80°F and overnight lows near 59°F, with 3.4 in of rain across 7.6 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 84°F in the first days to 75°F by the end. The sky is clear or mostly clear about 51% 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 Emporia's 1st-clearest and 10th-windiest month. For the whole year in context, see Emporia's year-round climate.

Daytime high
80°
4th warmest
Overnight low
59°
9th coldest
Rainfall
3.4 in
7.6 wet days
Daylight
12 h 12 min
6:12 AM – 6:26 PM
Cloud cover
42%
1st clearest
Wind
8 mph
10th windiest
Solar energy
4.93 kWh/m²
Travel score
7.0
out of 10

Emporia is city and county seat of Lyon County, Kansas, United States.

Density
777/km²
people per km²
Founded
1857

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 84°F in the first days to 75°F by the end.

A typical September day in Emporia reaches about 80°F in the afternoon and slips back to 59°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 69°F and 90°F. Set against its neighbours, September runs about 8°F cooler than August and about 12°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
18564
28564
38464
48463
58363
68363
78362
88262
98261
108261
118160
128160
138060
148059
158059
167958
177958
187858
197857
207857
217856
227756
237756
247755
257655
267654
277654
287553
297553
307553

How September really feels in Emporia

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.

Emporia weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan41° / 22°1.14.839.60.1
Feb46° / 26°1.55.32.310.51.2
Mar56° / 35°2.78.61.511.74.0
Apr66° / 45°3.910.20.4136.0
May75° / 55°5.813014.16.4
Jun84° / 65°4.710.9014.65.5
Jul89° / 70°3.79.6014.44.4
Aug87° / 67°3.99.2013.54.9
Sep80° / 59°3.47.6012.37.0
Oct68° / 47°3.07.40.2116.9
Nov55° / 35°1.95.70.89.93.9
Dec44° / 26°1.54.92.39.40.7

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 14% of September, with mostly cloudy or overcast conditions the remaining 35%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16832
26733
36832
46733
56634
66535
76535
86535
96535
106436
116436
126238
136238
146238
156139
166139
176238
186238
196337
206337
216436
226535
236634
246634
256733
266832
276832
286832
296931
306931

Chance of precipitation in September

Any precipitation

Emporia gets around 3.4 in of rain over 7.6 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 26% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
125
225
325
426
526
626
726
827
927
1027
1128
1228
1329
1429
1529
1629
1729
1828
1928
2027
2127
2226
2325
2424
2524
2623
2723
2823
2923
3023

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 39% of days. Sticky, muggy-or-worse air turns up on roughly 23% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1121529367
2141629357
3151629336
4171729315
5191729305
6211828284
7231828274
8251827264
9271826253
10291825243
11311924243
12321923233
13341923222
14361922222
15371921212
16391920202
17411819202
18431818192
19451818182
20471817172
21491716162
22511715152
23541614142
24561613132
25581513122
26601512112
27631412101
2865141191
2967131181
3069131071

Wind in September

Winds average 8 mph in September.

Across September, daily wind ranges from about 8 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light 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 5:58 AM to 6:25 AM, and sunset from 6:51 PM to 6:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:586:51
212.85:596:49
312.86:006:48
412.86:016:46
512.76:026:44
612.76:036:43
712.66:046:41
812.66:056:40
912.56:056:38
1012.56:066:36
1112.56:076:35
1212.46:086:33
1312.46:096:31
1412.36:106:30
1512.36:116:28
1612.26:126:26
1712.26:136:25
1812.26:146:23
1912.16:146:21
2012.16:156:20
2112.06:166:18
2212.06:176:17
2311.96:186:15
2411.96:196:13
2511.96:206:12
2611.86:216:10
2711.86:226:08
2811.76:236:07
2911.76:246:05
3011.66:256:04

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.93 kWh/m².

For context, solar energy here swings from a low near 2.2 kWh/m² to a high of 6.7 kWh/m² in July across the year — September's 4.93 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.4Bright
45.4Bright
55.3Bright
65.3Bright
75.2Bright
85.2Bright
95.1Bright
105.1Bright
115.0Bright
125.0Bright
134.9Bright
144.9Bright
154.9Bright
164.8Bright
174.8Bright
184.8Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.6Bright
254.6Bright
264.6Bright
274.5Bright
284.5Bright
294.5Bright
304.4Bright
Planning a trip in September

Is September a good time to visit Emporia?

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

7.0
Sightseeing
1st-best month of the year
7.0
Beach & pool
2nd-best month of the year

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

What to pack for Emporia in September

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

In September, Emporia sees daytime highs around 80°F and nights near 59°F. Worth packing: light clothes and sun protection. About 8 days see rain.

light clothessun protection

UV index in Emporia 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 Emporia peaks around June 22 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 highHighModerateJun 22UV 10Dec 20UV 2
UV index (midday)Level
Jan3Moderate
Feb3Moderate
Mar5Moderate
Apr7Very high
May7Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Moderate

Air quality in Emporia 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 Emporia is worst in April — around 35 µg/m³ PM2.5 (moderate), about 6.6× the cleanest month (October, 5 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodApr 1532 µg/m³Oct 235 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar17Moderate
Apr35Moderate
May11Good
Jun12Moderate
Jul14Moderate
Aug13Moderate
Sep10Good
Oct5Good
Nov6Good
Dec7Good
Location & terrain

Where is Emporia?

Emporia sits at 38.4°N, 96.2°W, 1,142 ft above sea level, in United States. The nearest listed city is Topeka, 52 mi away.

Topography around Emporia

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

Within 2 miles, the terrain around Emporia has only modest variations in elevation — a maximum elevation change of 135 ft around an average of 1,129 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 354 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 797 ft.

The land around Emporia is covered by trees (34%), cropland (23%) and artificial surfaces (22%) within 2 miles, grassland (47%) and cropland (36%) within 10 miles, and grassland (66%) and cropland (22%) within 50 miles.

2 miles
135 ft
10 miles
354 ft
50 miles
797 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Topeka 52 mi · Junction City 55 mi · Manhattan 58 mi · Lawrence 65 mi · Newton 68 mi · Gardner 73 mi · Wichita 80 mi · Olathe 81 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 Emporia (38.4039°, -96.1817°, elevation 1,142 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).