Nanjing in Spring

In spring (March, April and May), Nanjing sees average daytime highs around 20°C and overnight lows near 12°C, with 295 mm of precipitation over about 29 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.

Over the season highs climb from about 12°C in early March to 27°C by late May. The sky is clear or mostly clear about 25% of the time across spring, and the air most often feels dry.

Spring is Nanjing's 2nd-best season to visit on our travel score. For the whole year in context, see Nanjing's year-round climate.

Avg daytime high: 20°C; 3rd-warmest season
Avg overnight low: 12°C
Precipitation: 295 mm; 29 wet days
Avg wind: 11 km/h
Travel score: 5.8; 2nd-best season
Months: Mar · Apr · May

← Winter Nanjing year-round climate Summer →

Spring Summer Fall Winter

Temperature in Nanjing in Spring

Average highAverage lowShaded bands: 10–90% of days

Over the season highs climb from about 12°C in early March to 27°C by late May.

A typical spring day in Nanjing reaches about 20°C and drops to 12°C overnight. The warmest of the three months is May, the coolest March.

How spring really feels in Nanjing

Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

spring 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 the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	7° / 0°	55	8	2	10.1	1.0
Feb	10° / 2°	55	8.3	1.3	10.8	2.2
Mar	15° / 6°	80	10	0.4	11.8	4.3
Apr	21° / 12°	94	9.1	0	12.8	6.4
May	26° / 17°	121	9.8	0	13.6	6.6
Jun	29° / 22°	222	11.9	0	14.1	5.2
Jul	32° / 25°	210	15.1	0	13.9	3.5
Aug	31° / 25°	174	14.4	0	13.2	3.9
Sep	27° / 20°	81	8.4	0	12.2	6.4
Oct	22° / 14°	54	6.3	0	11.2	7.4
Nov	16° / 8°	53	6.8	0.1	10.4	5.5
Dec	10° / 2°	34	5.6	0.4	9.9	2.4

Cloud cover in Spring

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time across spring.

Chance of precipitation in Spring

Any precipitationSnow

Nanjing gets around 295 mm of rain and snow over 29 wet days across spring. The line is the day-by-day chance of measurable precipitation.

Humidity in Spring

DryComfortableHumidMuggyOppressiveMiserable

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

Wind in Spring

Winds average 11 km/h across spring.

Sunrise & sunset in Spring

DaylightNight

Daylight runs from about 11 h 18 min in early March to 13 h 54 min by late May. The lit band spans sunrise to sunset each day.

Solar energy in Spring

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across spring, about 4.8 kWh/m².

Planning a trip in spring

Hazard calendar for Nanjing

In seasonPeak

In spring, Nanjing overlaps 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 spring a good time to visit Nanjing?

Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

5.8

Sightseeing

2nd-best month of the year

3.5

Beach & pool

3rd-best month of the year

spring is a reasonable time to visit Nanjing for sightseeing.

What to pack for Nanjing in Spring

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

In spring, Nanjing sees daytime highs around 20°C and nights near 12°C. Worth packing: light clothes, a warm layer, rain gear and sun protection. About 29 days see rain.

light clothesa warm layerrain gearsun protection

UV index in Nanjing in Spring

LowModerateHighVery highExtreme

Clear-sky midday UV across spring averages 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	3	5	6	6	7	6	9	8	9	5	3	3
Level	Moderate	Moderate	High	High	High	High	Very high	Very high	Very high	Moderate	Moderate	Moderate

	UV index (midday)	Level
Jan	3	Moderate
Feb	5	Moderate
Mar	6	High
Apr	6	High
May	7	High
Jun	6	High
Jul	9	Very high
Aug	8	Very high
Sep	9	Very high
Oct	5	Moderate
Nov	3	Moderate
Dec	3	Moderate

Air quality in Nanjing in Spring

GoodModeratePoorUnhealthyVery unhealthy

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	59	55	53	48	42	36	29	29	35	44	49	58
Level	Unhealthy	Poor	Poor	Poor	Poor	Poor	Moderate	Moderate	Poor	Poor	Poor	Unhealthy

	PM2.5 (µg/m³)	Level
Jan	59	Unhealthy
Feb	55	Poor
Mar	53	Poor
Apr	48	Poor
May	42	Poor
Jun	36	Poor
Jul	29	Moderate
Aug	29	Moderate
Sep	35	Poor
Oct	44	Poor
Nov	49	Poor
Dec	58	Unhealthy

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.

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

artificial surfaces 66%

16 km

514 m

artificial surfaces 46%

80 km

611 m

cropland 51%

treesgrasslandcroplandartificial surfacesbare terrainwater

← Winter Nanjing year-round climate Summer →

Spring 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

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.