Hangzhou weather in April

In April, Hangzhou sees average daytime highs of 22°C and overnight lows near 13°C, with 131 mm of rain across 12.1 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 19°C in the first days to 24°C by the end. The sky is clear or mostly clear about 21% 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 06 min by month's end. Set against the rest of the year, April is Hangzhou's 9th-clearest and 2nd-windiest month. For the whole year in context, see Hangzhou's year-round climate.

Daytime high
22°
7th warmest
Overnight low
13°
6th coldest
Rainfall
131 mm
12.1 wet days
Daylight
12 h 42 min
5:38 AM – 6:22 PM
Cloud cover
70%
9th clearest
Wind
9 km/h
2nd windiest
Solar energy
4.52 kWh/m²
Travel score
6.0
out of 10

Hangzhou is capital of Zhejiang Province, China.

Air quality
High
PM2.5 29.5 µg/m³ · 2019
Density
548/km²
people per km²

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 19°C in the first days to 24°C by the end.

A typical April day in Hangzhou reaches about 22°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 28°C. Set against its neighbours, April runs about 6°C warmer than March and about 5°C cooler than May.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
11910
21910
31911
41911
52011
62011
72011
82012
92012
102112
112112
122112
132112
142113
152213
162213
172213
182213
192214
202314
212314
222314
232314
242315
252415
262415
272415
282415
292416
302516

How April really feels in Hangzhou

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.

Hangzhou 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 / 8010.41.610.31.7
Feb11° / 739.9110.92.7
Mar16° / 11913.50.211.84.4
Apr22° / 13°13112.1012.76.0
May27° / 18°15712.2013.56.1
Jun29° / 22°30316.2013.94.5
Jul34° / 26°17312.9013.82.8
Aug33° / 26°14114.8013.13.0
Sep29° / 22°9810.1012.25.6
Oct24° / 16°596.3011.37.4
Nov18° / 10°658.5010.55.9
Dec12° / 597.50.410.13.2

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 12% of April, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13169
23268
33268
43268
53169
63169
73169
83169
93268
103367
113367
123367
133367
143367
153367
163367
173367
183367
193466
203466
213466
223466
233367
243367
253367
263367
273367
283367
293367
303367

Chance of precipitation in April

Any precipitation

Hangzhou gets around 131 mm of rain over 12.1 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 41% and peaks near 44% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
140
240
340
439
540
640
740
840
941
1041
1142
1242
1343
1443
1544
1644
1744
1843
1943
2042
2142
2241
2341
2440
2540
2640
2739
2838
2938
3038

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 58% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
18012710
27913710
37714810
47515910
57515910
673161010
772171010
871181010
969191110
1068191120
1166201220
1265211220
1363221320
1462221330
1560231430
1659241430
1758241440
1855251541
1954251551
2052261651
2151261661
2248271771
2346271882
2444271892
25422719102
26402720102
27392720113
28372721123
29352622133
30342623144

Wind in April

Winds average 9 km/h in April.

Across April, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over April. Sunrise moves from 5:56 AM to 5:23 AM, and sunset from 6:12 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:566:12
212.35:556:13
312.35:536:13
412.45:526:14
512.45:516:15
612.45:506:15
712.55:486:16
812.55:476:17
912.55:466:17
1012.65:456:18
1112.65:436:18
1212.65:426:19
1312.65:416:20
1412.75:406:20
1512.75:396:21
1612.75:386:22
1712.85:366:22
1812.85:356:23
1912.85:346:23
2012.95:336:24
2112.95:326:25
2212.95:316:25
2312.95:306:26
2413.05:296:27
2513.05:286:27
2613.05:276:28
2713.15:266:29
2813.15:256:29
2913.15:246:30
3013.15:236:31

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.52 kWh/m².

For context, solar energy here swings from a low near 2.46 kWh/m² to a high of 5.27 kWh/m² in July across the year — April's 4.52 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.2Bright
44.2Bright
54.2Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.4Bright
114.4Bright
124.4Bright
134.4Bright
144.4Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.6Bright
214.6Bright
224.6Bright
234.7Bright
244.7Bright
254.7Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
Planning a trip in April

Hazard calendar for Hangzhou

In seasonPeak

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

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

Hangzhou'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 Hangzhou?

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

6.0
Sightseeing
3rd-best month of the year
4.0
Beach & pool
7th-best month of the year

April is a reasonable time to visit Hangzhou for sightseeing.

What to pack for Hangzhou in April

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

In April, Hangzhou sees daytime highs around 22°C and nights near 13°C. Worth packing: rain gear and sun protection. About 12 days see rain.

rain gearsun protection

Sea temperature near Hangzhou in April

The nearest coast averages about 14°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 45 km away) is warmest in August at about 29°C and coldest in February near 7°C.

It's comfortable for a long swim from May 22 to Oct 29 — about 5.3 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan8Bracing
Feb7Bracing
Mar10Bracing
Apr14Bracing
May19Cool
Jun24Refreshing
Jul27Warm
Aug29Tropical
Sep26Warm
Oct22Refreshing
Nov17Cool
Dec12Bracing

UV index in Hangzhou 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 Hangzhou peaks around July 20 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 20UV 10Jan 10UV 3
UV index (midday)Level
Jan3Moderate
Feb5High
Mar6High
Apr7Very high
May8Very high
Jun8Very high
Jul10Very high
Aug9Very high
Sep10Very high
Oct5Moderate
Nov4Moderate
Dec3Moderate

Air quality in Hangzhou 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 Hangzhou is worst in December — around 39 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (August, 18 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Hangzhou's WHO annual average of 29.5 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorDec 2339 µg/m³Aug 1118 µg/m³
PM2.5 (µg/m³)Level
Jan39Poor
Feb37Poor
Mar36Poor
Apr32Moderate
May27Moderate
Jun24Moderate
Jul19Moderate
Aug18Moderate
Sep23Moderate
Oct27Moderate
Nov33Moderate
Dec39Poor
Location & terrain

Where is Hangzhou?

Hangzhou sits at 30.3°N, 120.2°E, 12 m above sea level, in China. The nearest listed city is Pingyao, 22 km away.

Fuzhou

Topography around Hangzhou

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

Within 3 km, the terrain around Hangzhou has only modest variations in elevation — a maximum elevation change of 28 m around an average of 10 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 415 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,634 m.

The land around Hangzhou is covered by artificial surfaces (77%) within 3 km, artificial surfaces (48%) and trees (26%) within 16 km, and trees (51%) and cropland (22%) within 80 km.

3 km
28 m
16 km
415 m
80 km
1,634 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Pingyao 22 km · Suzhou 120 km · Ningbo 141 km · Wuxi 142 km · Shanghai 161 km · Tunxi 189 km · Nanjing 237 km · Fuzhou 478 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 Hangzhou (30.2936°, 120.1614°, elevation 12 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). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).