Suzhou weather in April

In April, Suzhou sees average daytime highs of 20°C and overnight lows near 13°C, with 119 mm of rain across 10.8 wet days and about 12.7 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 22°C by the end. The sky is clear or mostly clear about 27% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of April to 13 h 12 min by month's end. Set against the rest of the year, April is Suzhou's 8th-clearest and 2nd-windiest month. For the whole year in context, see Suzhou's year-round climate.

Daytime high
20°
7th warmest
Overnight low
13°
6th coldest
Rainfall
119 mm
10.8 wet days
Daylight
12 h 48 min
5:35 AM – 6:21 PM
Cloud cover
65%
8th clearest
Wind
15 km/h
2nd windiest
Solar energy
4.9 kWh/m²
Travel score
5.9
out of 10

Suzhou is prefecture-level city in Jiangsu, China, former capital of the kingdom of Wu.

Air quality
Very high
PM2.5 47.5 µg/m³ · 2018
Density
776/km²
people per km²
Founded
~514 BCE

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 17°C in the first days to 22°C by the end.

A typical April day in Suzhou reaches about 20°C in the afternoon and slips back to 13°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 25°C. Set against its neighbours, April runs about 6°C warmer than March and about 5°C cooler than May.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
11710
21710
31711
41711
51811
61811
71811
81812
91812
101912
111912
121912
131913
141913
152013
162013
172013
182013
192014
202114
212114
222114
232114
242215
252215
262215
272215
282215
292316
302316

How April really feels in Suzhou

Once humidity and wind are folded in, April 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

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

Suzhou weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 789.11.110.21.0
Feb / 819.40.810.91.9
Mar14° / 11712.50.211.83.7
Apr20° / 13°11910.8012.75.9
May25° / 18°14210.8013.66.6
Jun28° / 22°275140145.3
Jul32° / 27°17113.1013.83.7
Aug31° / 26°16014.3013.13.9
Sep27° / 22°959.6012.26.3
Oct22° / 17°626.6011.27.3
Nov16° / 11°678.3010.45.3
Dec10° / 556.90.4102.3

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 10% of April, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13763
23862
33862
43763
53763
63763
73763
83763
93763
103763
113763
123763
133763
143664
153664
163664
173664
183664
193763
203763
213763
223763
233862
243862
253862
263862
273862
283862
293862
303862

Chance of precipitation in April

Any precipitation

Suzhou gets around 119 mm of rain over 10.8 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 37% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
138
237
337
436
536
636
736
836
936
1036
1137
1237
1337
1438
1538
1638
1738
1838
1938
2038
2137
2237
2337
2436
2536
2636
2735
2835
2934
3034

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 63% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
18311510
28112610
38112610
48013610
57814710
67715710
77715710
87516810
97516810
107417810
117218910
1270191010
1369191020
1467201120
1567201120
1665211220
1764211230
1862221330
1961221331
2058231441
2156241541
2253251651
2351261661
2448271761
2546271872
2644281982
2742281982
2840282093
29382821103
30362922103

Wind in April

Winds average 15 km/h in April.

Across April, daily wind ranges from about 15 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over April. Sunrise moves from 5:54 AM to 5:20 AM, and sunset from 6:11 PM to 6:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:546:11
212.35:526:11
312.45:516:12
412.45:506:13
512.45:496:13
612.45:476:14
712.55:466:15
812.55:456:15
912.55:436:16
1012.65:426:17
1112.65:416:17
1212.65:406:18
1312.75:396:19
1412.75:376:19
1512.75:366:20
1612.85:356:21
1712.85:346:21
1812.85:336:22
1912.95:316:23
2012.95:306:23
2112.95:296:24
2212.95:286:25
2313.05:276:25
2413.05:266:26
2513.05:256:27
2613.15:246:28
2713.15:236:28
2813.15:226:29
2913.25:216:30
3013.25:206:30

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.9 kWh/m².

For context, solar energy here swings from a low near 2.53 kWh/m² to a high of 5.24 kWh/m² in July across the year — April's 4.9 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.6Bright
44.6Bright
54.6Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.2Bright
Planning a trip in April

Hazard calendar for Suzhou

In seasonPeak

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

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

Suzhou'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 April a good time to visit Suzhou?

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

5.9
Sightseeing
4th-best month of the year
3.0
Beach & pool
7th-best month of the year

April is a reasonable time to visit Suzhou for sightseeing.

What to pack for Suzhou in April

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

In April, Suzhou sees daytime highs around 20°C and nights near 13°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

UV index in Suzhou in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Suzhou peaks around September 11 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateSep 11UV 10Dec 19UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7High
May7High
Jun8Very high
Jul10Very high
Aug9Very high
Sep10Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Suzhou in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Suzhou is worst in December — around 67 µg/m³ PM2.5 (unhealthy), about 2.2× the cleanest month (August, 30 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Suzhou's WHO annual average of 47.5 µg/m³.

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyDec 2167 µg/m³Aug 1030 µg/m³
PM2.5 (µg/m³)Level
Jan65Unhealthy
Feb57Unhealthy
Mar54Poor
Apr50Poor
May42Poor
Jun36Poor
Jul31Moderate
Aug30Moderate
Sep38Poor
Oct45Poor
Nov56Unhealthy
Dec67Unhealthy
Location & terrain

Where is Suzhou?

Suzhou sits at 31.3°N, 120.6°E, 10 m above sea level, in China. The nearest listed city is Wuxi, 41 km away.

Qingdao

Topography around Suzhou

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

Within 3 km, the terrain around Suzhou has only modest variations in elevation — a maximum elevation change of 21 m around an average of 7 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 329 m; within 80 km, significant variations in elevation — a maximum elevation change of 561 m.

The land around Suzhou is covered by artificial surfaces (84%) within 3 km, artificial surfaces (50%) and trees (20%) within 16 km, and cropland (33%), artificial surfaces (30%) and water (21%) within 80 km.

3 km
21 m
16 km
329 m
80 km
561 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Wuxi 41 km · Shanghai 83 km · Pingyao 117 km · Hangzhou 120 km · Ningbo 183 km · Nanjing 192 km · Tunxi 281 km · Qingdao 530 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 Suzhou (31.3041°, 120.5954°, elevation 10 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).