Suzhou weather in August

In August, Suzhou sees average daytime highs of 31°C and overnight lows near 26°C, with 160 mm of rain across 14.3 wet days and about 13.1 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 32°C in the first days to 30°C by the end. The sky is clear or mostly clear about 31% of the time in August, and the air most often feels miserable.

Daylight stretches from about 13 h 30 min at the start of August to 12 h 42 min by month's end. Set against the rest of the year, August is Suzhou's 7th-clearest and 4th-windiest month. For the whole year in context, see Suzhou's year-round climate.

Daytime high
31°
2nd warmest
Overnight low
26°
11th coldest
Rainfall
160 mm
14.3 wet days
Daylight
13 h 12 min
5:27 AM – 6:36 PM
Cloud cover
62%
7th clearest
Wind
14 km/h
4th windiest
Solar energy
4.93 kWh/m²
Travel score
3.9
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 August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 32°C in the first days to 30°C by the end.

A typical August day in Suzhou reaches about 31°C in the afternoon and slips back to 26°C overnight — a 5°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, August runs on par with July and about 4°C warmer than September.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13327
23327
33327
43227
53227
63227
73227
83227
93227
103227
113227
123227
133227
143227
153127
163126
173126
183126
193126
203126
213126
223126
233126
243026
253025
263025
273025
283025
293025
303025
313025

How August really feels in Suzhou

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

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

Suzhou weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 3rd-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 15% of August, with mostly cloudy or overcast conditions the remaining 54%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35050
44951
54951
64852
74852
84753
94753
104753
114654
124654
134456
144456
154555
164555
174456
184456
194456
204258
214357
224357
234456
244357
254456
264456
274555
284456
294654
304654
314654

Chance of precipitation in August

Any precipitation

Suzhou gets around 160 mm of rain over 14.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 45% and peaks near 50% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
136
236
338
439
540
641
742
843
944
1044
1145
1246
1347
1447
1548
1648
1749
1849
1949
2050
2150
2249
2349
2449
2548
2647
2747
2846
2945
3044
3143

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the miserable band about 70% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101990
201990
3011089
4011188
5021187
6021286
7021385
8021583
9031681
10031780
11031879
12031978
13042175
14042274
15042373
16042472
17052570
18052669
19052768
20062866
21172864
22182962
23192961
241103059
252123056
262133154
272153152
283173149
293193146
304213244
314223241

Wind in August

Winds average 14 km/h in August.

Across August, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
515light breeze
615light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 30 min at the start of August to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over August. Sunrise moves from 5:17 AM to 5:37 AM, and sunset from 6:50 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:176:50
213.55:186:49
313.55:196:48
413.55:196:48
513.45:206:47
613.45:216:46
713.45:216:45
813.45:226:44
913.35:236:43
1013.35:236:42
1113.35:246:41
1213.35:256:40
1313.25:256:39
1413.25:266:38
1513.25:276:37
1613.25:276:36
1713.15:286:35
1813.15:286:34
1913.15:296:33
2013.05:306:32
2113.05:306:31
2213.05:316:30
2312.95:326:28
2412.95:326:27
2512.95:336:26
2612.95:346:25
2712.85:346:24
2812.85:356:22
2912.85:356:21
3012.75:366:20
3112.75:376:19

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.93 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 — August's 4.93 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.5Bright
35.5Bright
45.4Bright
55.4Bright
65.3Bright
75.3Bright
85.2Bright
95.2Bright
105.1Bright
115.1Bright
125.1Bright
135.0Bright
145.0Bright
155.0Bright
164.9Bright
174.9Bright
184.9Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.6Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in August

Hazard calendar for Suzhou

In seasonPeak

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

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

3.9
Sightseeing
7th-best month of the year
6.0
Beach & pool
2nd-best month of the year

August is a weaker month for outdoor sightseeing in Suzhou. The water and warmth also suit a beach or pool day.

What to pack for Suzhou in August

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

In August, Suzhou sees daytime highs around 31°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 14 days see rain.

light clothesrain gearsun protection

UV index in Suzhou in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 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 August

GoodModeratePoorUnhealthyVery unhealthy

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