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Contents
- The climate of Suzhou
- The best time to visit Suzhou
- The worst time to visit Suzhou
- Spring weather in Suzhou
- Summer weather in Suzhou
- Autumn weather in Suzhou
- Winter weather in Suzhou
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
The climate of Suzhou
Suzhou, situated in the eastern coastal province of Jiangsu, China, is governed predominantly by a humid subtropical climate (Cfa) according to the Köppen climate classification. The area experiences a wide range of weather conditions throughout the year with variations in temperature, rainfall, sunlight hours and wind speed.
Taking a comprehensive look at the provided data, temperatures vary noticeably, from a low of around 2.5°C (36.5°F) in January to a high of about 31.9°C (89.4°F) in August. Similarly, precipitation in Suzhou moves from a minimum rainfall value of 25mm (0.98") in October to a peak of 161mm (6.34") in July, indicating a predominance of summer rainfall. Also noteworthy are the periods, from May to September, when the city experiences its highest levels of humidity at above 68%.
Noticeably, there are shifts in the amount of sunlight received throughout the year; moving from a low of 10.1 hours in December to a maximum of 14.2 hours in June. Wind speeds in Suzhou tend to be relatively consistent, ranging from about 10.5km/h (6.5mph) to 12.7km/h (7.9mph). These wind speeds can increase when considering maximum wind speed and gusts, which peak at approximately 13.4km/h (8.3mph) and 18.3km/h (11.4mph) respectively.
While Suzhou does see some snowy days, these are primarily confined to the winter months of December and January, with January seeing the most snowfall at 27mm (1.06").
Taking a comprehensive look at the provided data, temperatures vary noticeably, from a low of around 2.5°C (36.5°F) in January to a high of about 31.9°C (89.4°F) in August. Similarly, precipitation in Suzhou moves from a minimum rainfall value of 25mm (0.98") in October to a peak of 161mm (6.34") in July, indicating a predominance of summer rainfall. Also noteworthy are the periods, from May to September, when the city experiences its highest levels of humidity at above 68%.
Noticeably, there are shifts in the amount of sunlight received throughout the year; moving from a low of 10.1 hours in December to a maximum of 14.2 hours in June. Wind speeds in Suzhou tend to be relatively consistent, ranging from about 10.5km/h (6.5mph) to 12.7km/h (7.9mph). These wind speeds can increase when considering maximum wind speed and gusts, which peak at approximately 13.4km/h (8.3mph) and 18.3km/h (11.4mph) respectively.
While Suzhou does see some snowy days, these are primarily confined to the winter months of December and January, with January seeing the most snowfall at 27mm (1.06").
The best time to visit Suzhou
Considering the various climate parameters, the best time to visit Suzhou would be from late April to early June. During this period, the city experiences moderate temperatures ranging from 6.2°C (43.2°F) to 26.3°C (79.3°F) alongside manageable humidity levels. Visitors can also expect a more pleasant amount of sunlight with daylight hours averaging between 12.9 and 13.7 hours.
The worst time to visit Suzhou
The least favorable time to visit Suzhou would arguably be from mid-June to August when humidity peaks at 80 - 81%, and temperatures can soar up to 31.9°C (89.4°F). Moreover, this period sees the highest rainfall with it reaching up to 161mm (6.34") in July, meaning outdoor activities might be affected.
Spring weather in Suzhou
Spring in Suzhou, from March to May, sees temperatures begin to climb from 14.9°C (58.8°F) up to 26.3°C (79.3°F). Precipitation also rises during this period from 51mm (2.01") in March to 57mm (2.24") in May. Despite this increase in rainfall, these are the months when there is a significant increase in daylight hours with it extending from 12.0 to 13.7 hours.
Summer weather in Suzhou
During the summer months of June to August, Suzhou experiences its highest temperatures reaching from 28.7°C (83.7°F) to 31.9°C (89.4°F). Humidity and precipitation also peak during this period. Despite the heat and high humidity, these are the months with the most daylight hours, hitting the maximum at 14.2 hours in June.
Autumn weather in Suzhou
Autumn in Suzhou, from September to November, brings significant drops in temperature moving from 27.4°C (81.3°F) in September to 17.2°C (63°F) in November. Rainfall also decreases substantially from 68mm (2.68") in September to 40mm (1.57") in November. Despite the changes in temperature and precipitation, daylight hours reduce slowly from 12.4 hours in September to 10.6 hours in November.
Winter weather in Suzhou
Winter months in Suzhou, from December to February, present the lowest temperatures dropping to about 2.5°C (36.5°F) in January, which is generally the chilliest month. At this time, the city also experiences occasional snowfall, mostly confined to January, but not more than 27mm (1.06"). Notably, daylight hours during the winter are the fewest, reaching a low of 10.1 hours in December.
Weather in January
Beginning the year, Suzhou experiences a winter month with considerable susceptibility to snow, though temperatures don't often drop below freezing. The daily sunshine duration slightly surpasses half the daylight duration, providing adequate light for activities during the day. Weather in January »
Weather in February
February brings a slight, yet noticeable increase in overall temperatures than its predecessor as Suzhou approaches the end of winter. Sunshine duration remains consistent with January, though daylight hours experience a minor increase. Weather in February »
Weather in March
The arrival of spring in March is accompanied by a noticeable upsurge in temperature in Suzhou. The extra daylight hours allow more sunshine coverage, with the UV index stepping up. Snowfall during this month decreases significantly, with just 5mm (0.2") of snow occurrence. Weather in March »
Weather in April
April continues the warming trend, showcasing a significant leap to almost subtropical temperatures. The proportion of sunshine to daylight hours improves from March and the UV index escalates, signaling the need for sun protection. Weather in April »
Weather in May
May sees a major jump in temperature reaching up to 26.3°C (79.3°F), pushing Suzhou further into its warm, pleasant season. Consequently, rainfall increases presumably due to the warmer conditions which fuel cloud formation. The absence of snow continues from April through May. Weather in May »
Weather in June
June marks the onset of summer, bearing the highest relative humidity and significantly elevated rainfall of 137mm (5.39"). The consistently high temperatures and longer daylight hours remain typical features of the month. Snowfall remains absent throughout June as is the norm for summer months. Weather in June »
Weather in July
July arrives showcasing the warmest temperatures of the year, with a high averaging at 31.8°C (89.2°F). Suzhou experiences its maximum quantity of rainfall, a whopping 161mm (6.34"). A steady sunshine duration persists, remaining relatively unaffected by the increased cloud cover. Weather in July »
Weather in August
August follows suit with similar temperatures to July, keeping the heatwave in Suzhou going strong. The ample sunshine duration and continuous high UV index remind locals and tourists alike about the recommended application of SPF formulations. Weather in August »
Weather in September
September brings a visible drop in temperature as Suzhou transitions from summer to autumn. The shortening daylight hours announce the end of the sun's dominion, but a consistent sunshine duration persists. Rainfall drops to 68mm (2.68") in a swift departure from the summer monsoons. Weather in September »
Weather in October
October brings residents a relief from the extremes of Suzhou's weather. One witnesses a decrease in rainfall occurrences to a mere 9.4 days with lighter quantities of 25mm (0.98"). The city’s climate becomes more temperate, with the sun continuing to shine brightly for the larger part of the daylight hours. Weather in October »
Weather in November
Considerably cooler temperatures descend upon Suzhou in November, reminding residents of the impending winter. A visible increase in wind and gust speeds contribute to the shift in weather conditions. The cloud cover decreases but doesn't cause a significant interruption in the pleasant sunshine duration. Weather in November »
Weather in December
December rings in the onset of winter with temperatures ranging from 4.7°C (40.5°F) to 10.3°C (50.5°F). An onset of snowfall after 8 months is observable, commencing with a humble 8mm (0.31"). Sunshine remains accessible despite the seasonal shift, staying relatively on par with November. Weather in December »
Updated: Jul 30, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
January is the coldest month of the year, registering average temperatures as high as 8.3°C (46.9°F) and as low as 2.5°C (36.5°F).
How many days does it rain?
In Suzhou, during the entire year, the rain falls for 166.5 days and collects up to 811mm (31.93") of precipitation.
When does it snow?
January through March and December are months with snowfall in Suzhou.
What is the snowiest month?
January is the month with the most snowfall. Snow falls for 2.8 days and accumulates 27mm (1.06") of snow.
How much does it snow?
In Suzhou, during the entire year, snow falls for 5.7 days and aggregates up to 62mm (2.44") of snow.
What is the month with the least sunshine?
With an average of 4.8h of sunshine, February has the least sunshine of the year.
When it does not snow?
In Suzhou, snow does not fall in April through November.
When are the longest days?
With an average of 14h and 12min of daylight, June has the longest days of the year.
What are the months with the highest UV index in Suzhou?
June and July, with an average maximum UV index of 7, are months with the highest UV index.
What are the most humid months?
The months with the highest humidity are July and September, with an average relative humidity of 81%.
What is the wettest month?
July is the month with the most rainfall. Rain falls for 21.1 days and accumulates 161mm (6.34") of precipitation.
What time of the year is the hottest in Suzhou?
Suzhou's temperatures tend to reach their peak averages in August, with a high of 31.9°C (89.4°F) and a low of 24.8°C (76.6°F).
What month has the most sunshine?
August has the most sunshine of the year, with an average of 9.6h of sunshine.
What is the driest month?
The month with the least rainfall is October, when the rain falls for 9.4 days and typically collects 25mm (0.98") of precipitation.
What is the least humid month?
December is the least humid month, with an average relative humidity of 65%.
What is the month with the shortest days?
December has the shortest days of the year in Suzhou, with an average of 10h and 12min of daylight.
Is there Daylight Saving Time (DST)?
Suzhou does not utilize Daylight Saving Time (DST). CST timezone is used throughout the entire year.
When is the lowest UV index?
The month with the lowest UV index is December, with an average maximum UV index of 2.
Average temperature
Suzhou, China
The warmest month (with the highest average high temperature) is August (31.9°C).
The month with the lowest average high temperature is January (8.3°C).
The months with the highest average low temperature are July and August (24.8°C).
The coldest month (with the lowest average low temperature) is January (2.5°C).
Average pressure
Suzhou, China
- Average pressure in January:
1027.3mbar - Average pressure in February:
1024.4mbar - Average pressure in March:
1021mbar - Average pressure in April:
1015.7mbar - Average pressure in May:
1010.9mbar - Average pressure in June:
1006.1mbar
- Average pressure in July:
1004.8mbar - Average pressure in August:
1005.9mbar - Average pressure in September:
1012.8mbar - Average pressure in October:
1019.4mbar - Average pressure in November:
1022.9mbar - Average pressure in December:
1026.6mbar
The month with the highest atmospheric pressure is January (1027.3mbar).
The month with the lowest atmospheric pressure is July (1004.8mbar).
Average wind speed
Suzhou, China
- Average wind speed in January:
12.2km/h - Average wind speed in February:
12.7km/h - Average wind speed in March:
12.5km/h - Average wind speed in April:
12.2km/h - Average wind speed in May:
12.1km/h - Average wind speed in June:
10.7km/h
- Average wind speed in July:
10.5km/h - Average wind speed in August:
11.4km/h - Average wind speed in September:
10.5km/h - Average wind speed in October:
11.2km/h - Average wind speed in November:
12km/h - Average wind speed in December:
12.7km/h
The windiest months (with the highest average wind speed) are February and December (12.7km/h).
The calmest months (with the lowest average wind speed) are July and September (10.5km/h).
Average humidity
Suzhou, China
The months with the highest relative humidity are July and September (81%).
The month with the lowest relative humidity is December (65%).
Average rainfall
Suzhou, China
The wettest month (with the highest rainfall) is July (161mm).
The driest month (with the least rainfall) is October (25mm).
Average rainfall days
Suzhou, China
- Average rainfall days in January:
10.5 days - Average rainfall days in February:
11.7 days - Average rainfall days in March:
13.2 days - Average rainfall days in April:
12.3 days - Average rainfall days in May:
12.3 days - Average rainfall days in June:
17.1 days
- Average rainfall days in July:
21.1 days - Average rainfall days in August:
20.9 days - Average rainfall days in September:
17.8 days - Average rainfall days in October:
9.4 days - Average rainfall days in November:
11.7 days - Average rainfall days in December:
8.5 days
The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is December (8.5 days).
Average snowfall
Suzhou, China
The month with the highest snowfall is January (27mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days
Suzhou, China
- Average snowfall days in January:
2.8 days - Average snowfall days in February:
2 days - Average snowfall days in March:
0.3 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.6 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Suzhou, China
- Average daylight in January:
10h and 2min - Average daylight in February:
11h and 1min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 5min - Average daylight in May:
13h and 4min - Average daylight in June:
14h and 1min
- Average daylight in July:
14h and 0min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 4min - Average daylight in December:
10h and 1min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
4h and 5min - Average sunshine in March:
7h and 0min - Average sunshine in April:
9h and 0min - Average sunshine in May:
8h and 5min - Average sunshine in June:
8h and 1min
- Average sunshine in July:
9h and 1min - Average sunshine in August:
9h and 4min - Average sunshine in September:
7h and 5min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 1min - Average sunshine in December:
5h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Suzhou, China
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
14.2 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
16.2 days - Average sunshine days in May:
15.9 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
7.7 days - Average sunshine days in August:
7.8 days - Average sunshine days in September:
10.6 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
17.4 days - Average sunshine days in December:
21.1 days
The month with the most sunshine days is December (21.1 days).
The month with the least sunshine days is July (7.7 days).
Average UV index
Suzhou, China
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Suzhou, China
The month with the most cloud cover is June (Cloud cover 50).
The month with the least cloud cover is December (Cloud cover 34).
Average visibility
Suzhou, China
The months with the highest visibility are October and December (10km).
The month with the lowest visibility is September (8km).
