Nanjing weather in October

In October, Nanjing sees average daytime highs of 22°C and overnight lows near 14°C, with 54 mm of rain across 6.3 wet days and about 11.2 hours of daylight. It is the 6th-warmest and 10th-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 44% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of October to 10 h 42 min by month's end. Set against the rest of the year, October is Nanjing's 3rd-clearest and 11th-windiest month. For the whole year in context, see Nanjing's year-round climate.

Daytime high
22°
6th warmest
Overnight low
14°
7th coldest
Rainfall
54 mm
6.3 wet days
Daylight
11 h 12 min
6:14 AM – 5:26 PM
Cloud cover
52%
3rd clearest
Wind
10 km/h
11th windiest
Solar energy
3.61 kWh/m²
Travel score
7.4
out of 10

Nanjing is capital city of Jiangsu Province, China, former capital of the Republic of China and China's Ming dynasty.

Air quality
Very high
PM2.5 44.7 µg/m³ · 2018
Density
1,414/km²
people per km²
Founded
~494 BCE

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

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 October day in Nanjing reaches about 22°C in the afternoon and slips back to 14°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 26°C. Set against its neighbours, October runs about 5°C cooler than September and about 6°C warmer than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12517
22517
32517
42417
52417
62416
72416
82416
92416
102316
112315
122315
132315
142315
152315
162314
172214
182214
192214
202214
212213
222113
232113
242113
252112
262112
272112
282012
292012
302011
312011

How October really feels in Nanjing

Once humidity and wind are folded in, October 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

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Nanjing weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 558210.11.0
Feb10° / 558.31.310.82.2
Mar15° / 80100.411.84.3
Apr21° / 12°949.1012.86.4
May26° / 17°1219.8013.66.6
Jun29° / 22°22211.9014.15.2
Jul32° / 25°21015.1013.93.5
Aug31° / 25°17414.4013.23.9
Sep27° / 20°818.4012.26.4
Oct22° / 14°546.3011.27.4
Nov16° / 536.80.110.45.5
Dec10° / 345.60.49.92.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 11% of October, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25149
35149
45149
55248
65248
75347
85347
95347
105347
115347
125347
135347
145248
155248
165248
175347
185347
195347
205446
215446
225446
235644
245644
255743
265941
275941
286139
296139
306238
316238

Chance of precipitation in October

Any precipitation

Nanjing gets around 54 mm of rain over 6.3 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 19% and peaks near 22% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
122
222
322
421
521
621
720
820
919
1019
1118
1218
1318
1418
1517
1617
1718
1818
1918
2018
2119
2219
2319
2419
2520
2620
2720
2820
2920
3020
3121

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1192631186
2202731175
3222830165
4232929154
5253028134
6273127123
7283126113
8303225102
932322492
1034332391
1136332281
1238322171
1340322071
1442311971
1544301861
1647301760
1749291660
1852281550
1954271450
2056261350
2160241240
2262231140
2364221040
246721930
256721930
266920830
277019830
287318720
297418620
307517620
317517620

Wind in October

Winds average 10 km/h in October.

Across October, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 42 min at the start of October to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over October. Sunrise moves from 6:03 AM to 6:26 AM, and sunset from 5:45 PM to 5:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:035:45
211.76:045:43
311.66:055:42
411.66:055:41
511.66:065:39
611.56:075:38
711.56:075:37
811.56:085:35
911.46:095:34
1011.46:105:33
1111.46:105:32
1211.36:115:31
1311.36:125:29
1411.36:125:28
1511.26:135:27
1611.26:145:26
1711.26:155:25
1811.16:165:24
1911.16:165:22
2011.16:175:21
2111.06:185:20
2211.06:195:19
2311.06:205:18
2410.96:205:17
2510.96:215:16
2610.96:225:15
2710.96:235:14
2810.86:245:13
2910.86:245:12
3010.86:255:12
3110.76:265:11

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.61 kWh/m².

For context, solar energy here swings from a low near 2.53 kWh/m² to a high of 5.28 kWh/m² in May across the year — October's 3.61 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.8Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.8Moderate
93.7Moderate
103.7Moderate
113.7Moderate
123.7Moderate
133.7Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.6Moderate
193.6Moderate
203.5Moderate
213.5Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.4Moderate
313.3Moderate
Planning a trip in October

Hazard calendar for Nanjing

In seasonPeak

In October, Nanjing sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Nanjing sits in the Pacific typhoon belt; the season peaks July–October.

Nanjing's rainy season runs May–August, when most of the year's rain falls.

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

Is October a good time to visit Nanjing?

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

7.4
Sightseeing
1st-best month of the year
5.4
Beach & pool
6th-best month of the year

October is one of the better times to visit Nanjing for general sightseeing.

What to pack for Nanjing in October

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

In October, Nanjing sees daytime highs around 22°C and nights near 14°C. Worth packing: light clothes. About 6 days see rain.

light clothes

UV index in Nanjing in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Nanjing peaks around July 21 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 21UV 9Dec 17UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr6High
May7High
Jun6High
Jul9Very high
Aug8Very high
Sep9Very high
Oct5Moderate
Nov3Moderate
Dec3Moderate

Air quality in Nanjing in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Nanjing is worst in January — around 59 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (August, 29 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Nanjing's WHO annual average of 44.7 µg/m³.

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 1059 µg/m³Aug 929 µg/m³
PM2.5 (µg/m³)Level
Jan59Unhealthy
Feb55Poor
Mar53Poor
Apr48Poor
May42Poor
Jun36Poor
Jul29Moderate
Aug29Moderate
Sep35Poor
Oct44Poor
Nov49Poor
Dec58Unhealthy
Location & terrain

Where is Nanjing?

Nanjing sits at 32.1°N, 118.8°E, 22 m above sea level, in China. The nearest listed city is Wuxi, 153 km away.

NingboWuhan

Topography around Nanjing

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

Within 3 km, the terrain around Nanjing has only modest variations in elevation — a maximum elevation change of 59 m around an average of 15 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 514 m; within 80 km, large variations in elevation — a maximum elevation change of 611 m.

The land around Nanjing is covered by artificial surfaces (66%) and trees (22%) within 3 km, artificial surfaces (46%) and trees (28%) within 16 km, and cropland (51%) and trees (28%) within 80 km.

3 km
59 m
16 km
514 m
80 km
611 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Wuxi 153 km · Suzhou 192 km · Pingyao 216 km · Hangzhou 237 km · Tunxi 265 km · Shanghai 270 km · Ningbo 359 km · Wuhan 459 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 Nanjing (32.0617°, 118.7778°, elevation 22 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).