Jiangsu Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Jiangsu, China in September.

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Suzhou Nanjing Wuxi Changzhou

Planning a trip to Jiangsu, China this September? Here's what you need to know about the weather:

What to Expect in Jiangsu in September

Jiangsu, China is a region in China. September in Jiangsu generally has warm temperatures, with precipitation levels ranging from moderate to high.

Temperatures

The average maximum temperatures are warm and range from 27°C (81°F) in Qidong to 29°C (84°F) in Zhouzhuang. Nighttime temperatures generally drop to 22°C (72°F) in Zhouzhuang and 23°C (73°F) in Qidong.

To learn more about the conditions in specific areas of Jiangsu, China, check out the map below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Xuzhou with an average of 82 mm (3.2 in) to high rainfall in Qidong with 114 mm (4.5 in).

Average sunshine

Most places get a reasonable amount of sunshine. Take Suzhou as an example - it receives around 172 hours of sunlight, offering a nice mix of sunny and partly cloudy days. Want to compare this with brighter destinations? Try our weather planner to explore your options.

Explore Jiangsu by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in Jiangsu in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Jiangsu.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Jiangsu

What is the weather like in September for some of the most popular destinations in Jiangsu, China?

Temperature range in Jiangsu (September)

Precipitation variation in Jiangsu (September)

Suzhou

In September Suzhou generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 22°C (72°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
33°C (91°F)
29°C (84°F)
24°C (75°F)
Min temperature
26°C (79°F)
22°C (72°F)
16°C (61°F)
Monthly sun hours
207 hours
172 hours
160 hours
Monthly rainfall
166 mm (6.5 in)
99 mm (3.9 in)
59 mm (2.3 in)
Monthly rainy days
12 days
13 days
12 days
Weather conditions
tolerable
perfect
perfect
Climate in Suzhou →

Nanjing

In September Nanjing generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 21°C (70°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
33°C (91°F)
29°C (84°F)
24°C (75°F)
Min temperature
25°C (77°F)
21°C (70°F)
14°C (57°F)
Monthly sun hours
201 hours
163 hours
164 hours
Monthly rainfall
177 mm (7 in)
88 mm (3.5 in)
56 mm (2.2 in)
Monthly rainy days
12 days
11 days
10 days
Weather conditions
tolerable
perfect
perfect
Climate in Nanjing →

Wuxi

In September Wuxi generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 22°C (72°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
33°C (91°F)
29°C (84°F)
24°C (75°F)
Min temperature
26°C (79°F)
22°C (72°F)
16°C (61°F)
Monthly sun hours
207 hours
172 hours
160 hours
Monthly rainfall
173 mm (6.8 in)
95 mm (3.7 in)
59 mm (2.3 in)
Monthly rainy days
12 days
13 days
12 days
Weather conditions
tolerable
perfect
perfect
Climate in Wuxi →

Changzhou

In September Changzhou generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 21°C (70°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
33°C (91°F)
29°C (84°F)
24°C (75°F)
Min temperature
26°C (79°F)
21°C (70°F)
15°C (59°F)
Monthly sun hours
245 hours
155 hours
155 hours
Monthly rainfall
172 mm (6.8 in)
89 mm (3.5 in)
54 mm (2.1 in)
Monthly rainy days
12 days
13 days
11 days
Weather conditions
tolerable
perfect
perfect
Climate in Changzhou →

Kunshan

In September Kunshan generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 22°C (72°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
33°C (91°F)
29°C (84°F)
24°C (75°F)
Min temperature
26°C (79°F)
22°C (72°F)
16°C (61°F)
Monthly sun hours
207 hours
172 hours
160 hours
Monthly rainfall
170 mm (6.7 in)
102 mm (4 in)
56 mm (2.2 in)
Monthly rainy days
11 days
13 days
12 days
Weather conditions
tolerable
pleasant
perfect
Climate in Kunshan →

Is your destination not in the list? Have a look at all destinations in Jiangsu, in China.

In our records: China September extremes

Notable September records observed across cities in China in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • From our sources, the wettest September day in China brought 362 mm (14 in) in Guangzhou on September 6, 1992.

Popular cities in September

Day & night temperatures, rainfall and average weather in Jiangsu in September.

City Weather Day temp Night temp Rainfall
Suzhou 29°C (84°F) 22°C (72°F) 99 mm (3.9 in)
Nanjing 29°C (84°F) 21°C (70°F) 88 mm (3.5 in)
Wuxi 29°C (84°F) 22°C (72°F) 95 mm (3.7 in)
Changzhou 29°C (84°F) 21°C (70°F) 89 mm (3.5 in)
Kunshan 29°C (84°F) 22°C (72°F) 102 mm (4 in)
Nantong 29°C (84°F) 21°C (70°F) 103 mm (4.1 in)

Jiangsu weather in September: frequently asked questions

What is the weather like in Jiangsu, China in September?

Expect perfect weather across Jiangsu, China in September. The popular destination of Suzhou averages 29°C (84°F) by day and 22°C (72°F) at night during this month.

What is the average temperature in Jiangsu, China in September?

Average temperatures in Jiangsu, China during September range from a nighttime low near 22°C (72°F) to a daytime high around 29°C (84°F) in Suzhou.

Does Jiangsu, China get a lot of rain in September?

Rain is generally moderate to light in Jiangsu, China during September, with Suzhou averaging close to 99 mm (3.9 in).

Is September a Good Time to Visit Jiangsu, China?

We believe that September is one of the best times to visit Jiangsu, China with overall perfect weather in Suzhou. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in September and October offering mostly perfect weather in Suzhou. In contrast, January, June, July and August tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Jiangsu.

Weather and climate has detailed information for every country in the world. Are you going to China? Get detailed historical weather averages for many cities in China.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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