Chengde weather in September

In September, Chengde sees average daytime highs of 23°C and overnight lows near 11°C, with 61 mm of rain across 7.6 wet days and about 12.3 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 20°C by the end. The sky is clear or mostly clear about 48% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Chengde's 7th-clearest and 10th-windiest month. For the whole year in context, see Chengde's year-round climate.

Daytime high
23°
5th warmest
Overnight low
11°
9th coldest
Rainfall
61 mm
7.6 wet days
Daylight
12 h 18 min
5:54 AM – 6:11 PM
Cloud cover
46%
7th clearest
Wind
6 km/h
10th windiest
Solar energy
4.54 kWh/m²
Travel score
7.3
out of 10

Chengde is prefecture-level city in Hebei, China.

Air quality
High
PM2.5 32.6 µg/m³ · 2018
Density
11/km²
people per km²
Founded
1681

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 25°C in the first days to 20°C by the end.

A typical September day in Chengde reaches about 23°C in the afternoon and slips back to 11°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 27°C. Set against its neighbours, September runs about 5°C cooler than August and about 7°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12615
22615
32514
42514
52514
62514
72514
82513
92413
102413
112413
122412
132412
142312
152312
162311
172311
182211
192211
202210
212210
222210
232110
24219
25219
26219
27209
28208
29208
30208

How September really feels in Chengde

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.

Chengde 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-2° / -14°20.819.40.0
Feb / -10°41.21.310.40.0
Mar / -3°1331.911.72.0
Apr17° / 274.80.813.15.9
May23° / 10°456.40.114.37.4
Jun27° / 15°10111.3014.96.3
Jul28° / 19°15213.8014.65.4
Aug27° / 18°11511.2013.66.2
Sep23° / 11°617.6012.37.3
Oct15° / 3550.410.95.5
Nov / -4°132.829.70.9
Dec-1° / -11°41.21.49.10.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15941
25941
35842
45941
55941
65941
75941
85842
95941
105941
115941
125941
135941
145941
155941
165941
176040
186040
196139
206238
216238
226238
236337
246436
256535
266535
276733
286733
296733
306733

Chance of precipitation in September

Any precipitation

Chengde gets around 61 mm 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 25% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
127
227
326
426
525
625
725
824
924
1024
1124
1224
1325
1425
1525
1625
1726
1826
1926
2026
2127
2227
2327
2427
2526
2626
2725
2825
2924
3024

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 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
133282991
236282781
339282571
442282361
545272160
648271950
751271840
853271640
957261430
1060251230
1164241020
126623920
136822820
147221610
157420510
167520410
177619410
187818310
198117200
208216200
218415100
228514100
238613100
248712100
258911000
269010000
27919000
28928000
29937000
30946000

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours 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 84 minutes over September. Sunrise moves from 5:39 AM to 6:09 AM, and sunset from 6:37 PM to 5:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:396:37
212.95:406:35
312.95:416:33
412.85:426:32
512.85:436:30
612.75:446:28
712.75:456:26
812.65:466:25
912.65:476:23
1012.55:486:21
1112.55:496:19
1212.55:506:18
1312.45:516:16
1412.45:526:14
1512.35:536:12
1612.35:546:11
1712.25:556:09
1812.25:566:07
1912.15:586:05
2012.15:596:03
2112.06:006:02
2212.06:016:00
2311.96:025:58
2411.96:035:56
2511.86:045:55
2611.86:055:53
2711.86:065:51
2811.76:075:49
2911.76:085:48
3011.66:095:46

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.54 kWh/m².

For context, solar energy here swings from a low near 2.22 kWh/m² to a high of 6.12 kWh/m² in May across the year — September's 4.54 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.6Bright
144.6Bright
154.6Bright
164.5Bright
174.5Bright
184.5Bright
194.4Bright
204.4Bright
214.4Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.2Bright
274.2Bright
284.2Bright
294.1Bright
304.1Bright
Planning a trip in September

Hazard calendar for Chengde

In seasonPeak

None of Chengde's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Chengde's rainy season runs June–August, 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 Chengde?

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

7.3
Sightseeing
2nd-best month of the year
5.4
Beach & pool
5th-best month of the year

September is one of the better times to visit Chengde for general sightseeing.

What to pack for Chengde in September

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

In September, Chengde sees daytime highs around 23°C and nights near 11°C. Worth packing: light clothes and sun protection. About 8 days see rain.

light clothessun protection

UV index in Chengde 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 Chengde peaks around July 24 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 20 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highModerateLowJul 24UV 8Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun8Very high
Jul8Very high
Aug8Very high
Sep7Very high
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Chengde 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 Chengde is worst in March — around 43 µg/m³ PM2.5 (poor), about 1.7× the cleanest month (August, 24 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Chengde's WHO annual average of 32.6 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModeratePoorModerateMar 1742 µg/m³Aug 2125 µg/m³
PM2.5 (µg/m³)Level
Jan30Moderate
Feb34Moderate
Mar43Poor
Apr35Poor
May34Moderate
Jun34Moderate
Jul30Moderate
Aug24Moderate
Sep26Moderate
Oct33Moderate
Nov38Poor
Dec29Moderate
Location & terrain

Where is Chengde?

Chengde sits at 41.0°N, 118.0°E, 318 m above sea level, in China. The nearest listed city is Beijing, 176 km away.

DalianDatongJinanSinŭijuUijuQingdao

Topography around Chengde

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

Within 3 km, the terrain around Chengde has significant variations in elevation — a maximum elevation change of 355 m around an average of 413 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 887 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,012 m.

The land around Chengde is covered by trees (42%), grassland (29%) and artificial surfaces (24%) within 3 km, trees (44%) and grassland (37%) within 16 km, and trees (66%) within 80 km.

3 km
355 m
16 km
887 m
80 km
2,012 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Beijing 176 km · Tianjin 212 km · Dalian 385 km · Datong 406 km · Jinan 484 km · Sinŭiju 552 km · Uiju 561 km · Qingdao 583 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 Chengde (40.9519°, 117.9588°, elevation 318 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).