Luoyang weather in September

In September, Luoyang sees average daytime highs of 26°C and overnight lows near 17°C, with 95 mm of rain across 9 wet days and about 12.2 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 24°C by the end. The sky is clear or mostly clear about 35% 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 Luoyang's 9th-clearest and 12th-windiest month. For the whole year in context, see Luoyang's year-round climate.

Daytime high
26°
5th warmest
Overnight low
17°
9th coldest
Rainfall
95 mm
9 wet days
Daylight
12 h 12 min
6:18 AM – 6:31 PM
Cloud cover
59%
9th clearest
Wind
6 km/h
12th windiest
Solar energy
4.08 kWh/m²
Travel score
6.7
out of 10

Luoyang is prefecture-level city in Henan, People's Republic of China.

Air quality
Severe
PM2.5 60.5 µg/m³ · 2018
Density
91/km²
people per km²

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 24°C by the end.

A typical September day in Luoyang reaches about 26°C in the afternoon and slips back to 17°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 20°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)
12820
22820
32820
42819
52819
62819
72819
82719
92718
102718
112718
122718
132718
142618
152617
162617
172617
182617
192617
202617
212516
222516
232516
242516
252516
262515
272515
282415
292415
302415

How September really feels in Luoyang

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.

Luoyang weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°112.82.49.90.6
Feb10° / -1°1531.710.72.6
Mar16° / 234.10.811.75.6
Apr23° / 11°405.10.112.87.4
May28° / 16°596.2013.86.4
Jun32° / 21°727.5014.34.2
Jul32° / 24°16013.8014.13.6
Aug30° / 22°13212.9013.34.6
Sep26° / 17°959012.26.7
Oct21° / 11°486.1011.17.1
Nov14° / 324.71.110.24.6
Dec / -2°102.41.49.71.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15050
24951
34951
44852
54852
64753
74654
84654
94555
104555
114456
124456
134357
144357
154357
164258
174456
184456
194456
204456
214456
224555
234456
244456
254456
264555
274555
284456
294357
304456

Chance of precipitation in September

Any precipitation

Luoyang gets around 95 mm of rain over 9 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 30% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
131
231
331
431
531
632
732
832
932
1032
1133
1233
1332
1432
1532
1631
1731
1831
1930
2030
2129
2229
2329
2428
2528
2627
2727
2826
2926
3025

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 33% of days. Sticky, muggy-or-worse air turns up on roughly 24% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
14122540171
25142639151
35152737141
46172836121
56183034111
67193132101
7721323091
8822332981
9823352771
10923362561
111024362451
121124372341
131225372141
141326382031
151426381831
161626371731
171727381521
181827381420
192028381320
202129381110
212329371010
22252936910
23273034810
24303033610
25323131500
26353130500
27383128400
28413026300
29443024200
30472922200

Wind in September

Winds average 6 km/h in September, the calmest month.

Across September, daily wind ranges from about 6 km/h on the calmest days to 6 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
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 6:07 AM to 6:29 AM, and sunset from 6:53 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:076:53
212.76:086:51
312.76:096:50
412.76:096:49
512.66:106:47
612.66:116:46
712.56:126:44
812.56:126:43
912.56:136:41
1012.46:146:40
1112.46:146:38
1212.46:156:37
1312.36:166:35
1412.36:176:34
1512.36:176:32
1612.26:186:31
1712.26:196:30
1812.16:206:28
1912.16:206:27
2012.16:216:25
2112.06:226:24
2212.06:236:22
2312.06:236:21
2411.96:246:19
2511.96:256:18
2611.86:266:16
2711.86:266:15
2811.86:276:13
2911.76:286:12
3011.76:296:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.08 kWh/m².

For context, solar energy here swings from a low near 2.61 kWh/m² to a high of 6.01 kWh/m² in June across the year — September's 4.08 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.3Bright
64.3Bright
74.3Bright
84.2Bright
94.2Bright
104.2Bright
114.1Bright
124.1Bright
134.1Bright
144.1Bright
154.0Bright
164.0Bright
174.0Bright
184.0Moderate
194.0Moderate
204.0Moderate
214.0Moderate
223.9Moderate
233.9Moderate
243.9Moderate
253.9Moderate
263.9Moderate
273.9Moderate
283.9Moderate
293.8Moderate
303.8Moderate
Planning a trip in September

Hazard calendar for Luoyang

In seasonPeak

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

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

Luoyang 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 Luoyang?

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
6.5
Beach & pool
3rd-best month of the year

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

What to pack for Luoyang in September

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

In September, Luoyang sees daytime highs around 26°C and nights near 17°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

UV index in Luoyang 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 Luoyang peaks around May 21 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 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 21UV 9Jan 11UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar6High
Apr6High
May9Very high
Jun8Very high
Jul8Very high
Aug7Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Moderate

Air quality in Luoyang 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 Luoyang is worst in January — around 83 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (July, 41 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Luoyang's WHO annual average of 60.5 µg/m³.

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyJan 1981 µg/m³Jul 2341 µg/m³
PM2.5 (µg/m³)Level
Jan83Unhealthy
Feb76Unhealthy
Mar71Unhealthy
Apr61Unhealthy
May52Poor
Jun46Poor
Jul41Poor
Aug41Poor
Sep53Poor
Oct64Unhealthy
Nov70Unhealthy
Dec69Unhealthy
Location & terrain

Where is Luoyang?

Luoyang sits at 34.7°N, 112.4°E, 128 m above sea level, in China. The nearest listed city is Songyang, 60 km away.

Xi'anJinanWuhanDatongZhangjiajieTianjin

Topography around Luoyang

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

Within 3 km, the terrain around Luoyang has only modest variations in elevation — a maximum elevation change of 83 m around an average of 153 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 279 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,844 m.

The land around Luoyang is covered by artificial surfaces (79%) within 3 km, cropland (40%) and artificial surfaces (36%) within 16 km, and cropland (43%) and trees (28%) within 80 km.

3 km
83 m
16 km
279 m
80 km
1,844 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Songyang 60 km · Zhengzhou 111 km · Xi'an 325 km · Jinan 468 km · Wuhan 486 km · Datong 607 km · Zhangjiajie 644 km · Tianjin 651 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 Luoyang (34.6735°, 112.4368°, elevation 128 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).