Zhengzhou weather in September

In September, Zhengzhou sees average daytime highs of 26°C and overnight lows near 18°C, with 83 mm of rain across 8.6 wet days and about 12.2 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 25°C by the end. The sky is clear or mostly clear about 37% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Zhengzhou's 7th-clearest and 11th-windiest month. For the whole year in context, see Zhengzhou's year-round climate.

Daytime high
26°
5th warmest
Overnight low
18°
9th coldest
Rainfall
83 mm
8.6 wet days
Daylight
12 h 12 min
6:13 AM – 6:26 PM
Cloud cover
57%
7th clearest
Wind
9 km/h
11th windiest
Solar energy
4.2 kWh/m²
Travel score
6.7
out of 10

Zhengzhou is capital of Henan province, China.

Air quality
Severe
PM2.5 68.6 µg/m³ · 2018
Density
562/km²
people per km²
Founded
~1550 BCE

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 28°C in the first days to 25°C by the end.

A typical September day in Zhengzhou reaches about 26°C in the afternoon and slips back to 18°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 31°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12920
22820
32820
42820
52820
62819
72819
82819
92719
102719
112718
122718
132718
142718
152618
162618
172617
182617
192617
202617
212617
222617
232516
242516
252516
262516
272516
282516
292515
302415

How September really feels in Zhengzhou

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
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.

Zhengzhou weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°102.31.99.90.3
Feb / -0°152.81.510.72.3
Mar15° / 254.50.711.75.3
Apr22° / 11°364.80.112.87.3
May27° / 17°586.3013.86.6
Jun32° / 22°867.3014.34.4
Jul32° / 24°18214.3014.13.7
Aug30° / 23°14613.8013.34.5
Sep26° / 18°838.6012.26.7
Oct21° / 12°424.9011.17.4
Nov14° / 304.60.810.24.6
Dec / -1°102.31.39.71.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14951
24951
34852
44852
54753
64753
74753
84555
94654
104654
114654
124654
134654
144654
154654
164654
174753
184852
194852
204852
214852
224852
234852
244951
254951
264951
274951
284951
294951
304852

Chance of precipitation in September

Any precipitation

Zhengzhou gets around 83 mm of rain over 8.6 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 29% and peaks near 36% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
136
235
334
434
533
633
732
832
931
1031
1131
1230
1330
1429
1529
1628
1728
1827
1927
2027
2126
2226
2326
2425
2525
2624
2723
2823
2922
3022

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 29% of days. Sticky, muggy-or-worse air turns up on roughly 26% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
14122337213
25132436193
35152535172
46162634152
56172833142
67192931122
77203030112
88213129102
9922322882
10923332771
111023332571
121124342461
131225342351
141426342241
151526342041
161727331931
171927331831
182028331630
192228321520
202428321420
212629321220
222829311110
23302930910
24332929810
25352928700
26382927600
27412925500
28432824400
29462822400
30492721300

Wind in September

Winds average 9 km/h in September.

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

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 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 66 minutes over September. Sunrise moves from 6:02 AM to 6:24 AM, and sunset from 6:48 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:026:48
212.76:036:47
312.76:046:45
412.76:046:44
512.66:056:42
612.66:066:41
712.56:076:39
812.56:076:38
912.56:086:37
1012.46:096:35
1112.46:106:34
1212.46:106:32
1312.36:116:31
1412.36:126:29
1512.36:136:28
1612.26:136:26
1712.26:146:25
1812.16:156:23
1912.16:166:22
2012.16:166:20
2112.06:176:19
2212.06:186:17
2312.06:196:16
2411.96:196:14
2511.96:206:13
2611.86:216:11
2711.86:226:10
2811.86:226:08
2911.76:236:07
3011.76:246:05

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.2 kWh/m².

For context, solar energy here swings from a low near 2.58 kWh/m² to a high of 6.03 kWh/m² in June across the year — September's 4.2 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.4Bright
54.4Bright
64.4Bright
74.3Bright
84.3Bright
94.3Bright
104.3Bright
114.2Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.1Bright
224.1Bright
234.1Bright
244.1Bright
254.1Bright
264.0Bright
274.0Bright
284.0Bright
294.0Moderate
304.0Moderate
Planning a trip in September

Hazard calendar for Zhengzhou

In seasonPeak

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

Zhengzhou's rainy season runs June–September, when most of the year's rain falls.

Zhengzhou sees seasonal dust haze (April–May), heaviest in May.

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

Is September a good time to visit Zhengzhou?

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

6.7
Sightseeing
3rd-best month of the year
6.6
Beach & pool
3rd-best month of the year

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

What to pack for Zhengzhou in September

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

In September, Zhengzhou sees daytime highs around 26°C and nights near 18°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

UV index in Zhengzhou 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 Zhengzhou peaks around May 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateMay 20UV 9Jan 10UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar6High
Apr5High
May9Very high
Jun8Very high
Jul8Very high
Aug7High
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Moderate

Air quality in Zhengzhou 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 Zhengzhou is worst in January — around 105 µg/m³ PM2.5 (unhealthy), about 2.7× the cleanest month (July, 40 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Zhengzhou's WHO annual average of 68.6 µg/m³.

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyJan 15103 µg/m³Jul 1840 µg/m³
PM2.5 (µg/m³)Level
Jan105Unhealthy
Feb87Unhealthy
Mar76Unhealthy
Apr64Unhealthy
May53Poor
Jun47Poor
Jul40Poor
Aug45Poor
Sep59Unhealthy
Oct74Unhealthy
Nov81Unhealthy
Dec93Unhealthy
Location & terrain

Where is Zhengzhou?

Zhengzhou sits at 34.8°N, 113.6°E, 104 m above sea level, in China. The nearest listed city is Songyang, 66 km away.

JinanXi'anWuhanNanjingTianjinDatong

Topography around Zhengzhou

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Zhengzhou.

Within 3 km, the terrain around Zhengzhou has only modest variations in elevation — a maximum elevation change of 37 m around an average of 105 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 205 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,415 m.

The land around Zhengzhou is covered by artificial surfaces (87%) within 3 km, artificial surfaces (54%) within 16 km, and cropland (62%) within 80 km.

3 km
37 m
16 km
205 m
80 km
1,415 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Songyang 66 km · Luoyang 111 km · Jinan 369 km · Xi'an 436 km · Wuhan 468 km · Nanjing 562 km · Tianjin 580 km · Datong 594 km

China travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / I
220 V · 50 Hz
Prices
≈ 47% of US
price level, 2025
GDP per capita
$13,862
2025
Happiness
6.1 / 10
World Happiness, 2025
Homicide rate
0.5
per 100k, 2020
Road deaths
17.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 464
Religion
unaffiliated 52%folk religion 22%Buddhist 18%Christian 5%

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 Zhengzhou (34.7578°, 113.6486°, elevation 104 m), 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).