Nanjing weather in July

In July, Nanjing sees average daytime highs of 32°C and overnight lows near 25°C, with 210 mm of rain across 15.1 wet days and about 13.9 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 30°C in the first days to 33°C by the end. The sky is clear or mostly clear about 18% of the time in July, and the air most often feels miserable.

Daylight stretches from about 14 h 06 min at the start of July to 13 h 36 min by month's end. Set against the rest of the year, July is Nanjing's 11th-clearest and 11th-windiest month. For the whole year in context, see Nanjing's year-round climate.

Daytime high
32°
1st warmest
Overnight low
25°
12th coldest
Rainfall
210 mm
15.1 wet days
Daylight
13 h 54 min
5:13 AM – 7:08 PM
Cloud cover
71%
11th clearest
Wind
10 km/h
11th windiest
Solar energy
5.03 kWh/m²
Travel score
3.5
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 July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 30°C in the first days to 33°C by the end.

A typical July day in Nanjing reaches about 32°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 35°C. Set against its neighbours, July runs about 3°C warmer than June and on par with August.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63024
73124
83125
93125
103125
113125
123125
133125
143125
153225
163225
173226
183226
193226
203226
213326
223326
233326
243326
253326
263326
273326
283326
293326
303326
313326

How July really feels in Nanjing

Once humidity and wind are folded in, July averages 31 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
31
14 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Nanjing weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 2nd-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 July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 12% of July, with mostly cloudy or overcast conditions the remaining 70%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11882
21981
31981
41981
51981
62080
72080
82179
92179
102179
112278
122278
132575
142575
152674
162872
172971
183169
193268
203367
213664
223862
234060
244159
254258
264456
274456
284555
294654
304555
314753

Chance of precipitation in July

Any precipitation

Nanjing gets around 210 mm of rain over 15.1 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 49% and peaks near 56% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
156
256
356
456
556
656
755
855
954
1054
1153
1252
1351
1451
1550
1649
1748
1848
1947
2046
2145
2244
2344
2443
2543
2643
2743
2843
2943
3043
3143

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the miserable band about 67% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11184239
21164241
31144143
41134046
51123948
61113950
71103851
8193753
9093655
10083557
11083359
12073261
13063064
14062965
15052768
16042670
17042472
18032374
19032275
20022078
21021979
22021880
23011683
24011584
25011584
26011485
27011386
28011386
29011386
30011485
31011485

Wind in July

Winds average 10 km/h in July.

Across July, 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 July

DaylightNight

Daylight runs from about 14 h 06 min at the start of July to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over July. Sunrise moves from 5:06 AM to 5:23 AM, and sunset from 7:10 PM to 6:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:067:10
214.15:067:10
314.15:077:10
414.15:077:10
514.05:087:10
614.05:087:10
714.05:087:10
814.05:097:10
914.05:097:10
1014.05:107:10
1114.05:107:09
1214.05:117:09
1314.05:127:09
1413.95:127:08
1513.95:137:08
1613.95:137:08
1713.95:147:07
1813.95:147:07
1913.95:157:07
2013.85:167:06
2113.85:167:06
2213.85:177:05
2313.85:177:05
2413.85:187:04
2513.75:197:03
2613.75:197:03
2713.75:207:02
2813.75:217:01
2913.75:217:01
3013.65:227:00
3113.65:236:59

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.03 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 — July's 5.03 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.6Bright
84.6Bright
94.6Bright
104.7Bright
114.7Bright
124.8Bright
134.8Bright
144.9Bright
154.9Bright
165.0Bright
175.0Bright
185.1Bright
195.2Bright
205.2Bright
215.3Bright
225.3Bright
235.3Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.3Bright
Planning a trip in July

Hazard calendar for Nanjing

In seasonPeak

In July, Nanjing sits inside its pacific typhoon and rainy season 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 July a good time to visit Nanjing?

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

3.5
Sightseeing
9th-best month of the year
5.6
Beach & pool
5th-best month of the year

July is a weaker month for outdoor sightseeing in Nanjing.

What to pack for Nanjing in July

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

In July, Nanjing sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Nanjing in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 9 (very high — sun protection essential). 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 July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July 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
July 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).