Nanjing weather in March

In March, Nanjing sees average daytime highs of 15°C and overnight lows near 6°C, with 80 mm of precipitation across 10 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 12°C in the first days to 17°C by the end. The sky is clear or mostly clear about 25% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of March to 12 h 18 min by month's end. Set against the rest of the year, March is Nanjing's 10th-clearest and 1st-windiest month. For the whole year in context, see Nanjing's year-round climate.

Daytime high
15°
9th warmest
Overnight low
4th coldest
Precipitation
80 mm
10 wet days
Daylight
11 h 48 min
6:22 AM – 6:07 PM
Cloud cover
67%
10th clearest
Wind
11 km/h
1st windiest
Solar energy
4.08 kWh/m²
Travel score
4.3
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 March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 12°C in the first days to 17°C by the end.

A typical March day in Nanjing reaches about 15°C in the afternoon and slips back to 6°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 21°C. Set against its neighbours, March runs about 5°C warmer than February and about 6°C cooler than April.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1124
2124
3124
4135
5135
6135
7135
8135
9145
10145
11146
12146
13146
14146
15156
16156
17156
18157
19157
20157
21157
22167
23167
24168
25168
26168
27178
28178
29179
30179
31189

How March really feels in Nanjing

Once humidity and wind are folded in, March 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

March 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 March compares with the rest of the year at a glance. March is the 9th-warmest and 7th-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 March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 10% of March, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33763
43763
53763
63763
73763
83664
93664
103664
113664
123565
133565
143565
153466
163367
173268
183268
193268
203268
213268
223268
233367
243367
253367
263367
273466
283466
293466
303565
313565

Chance of precipitation in March

Any precipitationSnow

Nanjing gets around 80 mm of rain and snow over 10 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 33% and peaks near 34% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1343
2343
3333
4333
5333
6323
7323
8322
9322
10322
11322
12322
13322
14332
15332
16341
17341
18341
19341
20341
21341
22341
23341
24341
25331
26330
27330
28320
29320
30310
31310

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the dry band about 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19910
29910
39910
49910
59910
69910
79910
89820
99820
109820
119820
129820
139820
149820
159820
169820
179730
189730
199730
209730
219631
229631
239541
249541
259442
269352
279352
289163
299073
309073
318983

Wind in March

Winds average 11 km/h in March, the windiest month of the year.

Across March, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 18 min at the start of March to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over March. Sunrise moves from 6:40 AM to 6:02 AM, and sunset from 5:56 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:405:56
211.36:395:57
311.36:385:58
411.46:375:58
511.46:365:59
611.46:346:00
711.56:336:01
811.56:326:01
911.56:316:02
1011.66:306:03
1111.66:286:04
1211.66:276:04
1311.76:266:05
1411.76:246:06
1511.76:236:07
1611.86:226:07
1711.86:216:08
1811.86:196:09
1911.96:186:09
2011.96:176:10
2111.96:156:11
2212.06:146:11
2312.06:136:12
2412.06:116:13
2512.16:106:14
2612.16:096:14
2712.16:076:15
2812.26:066:16
2912.26:056:16
3012.26:036:17
3112.36:026:18

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.08 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 — March's 4.08 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.7Moderate
33.7Moderate
43.7Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.9Moderate
93.9Moderate
103.9Moderate
114.0Moderate
124.0Moderate
134.0Moderate
144.0Bright
154.0Bright
164.0Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.2Bright
224.2Bright
234.2Bright
244.3Bright
254.3Bright
264.3Bright
274.4Bright
284.4Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in March

Hazard calendar for Nanjing

In seasonPeak

In March, 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 March a good time to visit Nanjing?

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

4.3
Sightseeing
7th-best month of the year
0.4
Beach & pool
9th-best month of the year

March is a reasonable time to visit Nanjing for sightseeing.

What to pack for Nanjing in March

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

In March, Nanjing sees daytime highs around 15°C and nights near 6°C. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

UV index in Nanjing in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 6 — 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 March

GoodModeratePoorUnhealthyVery unhealthy

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