Suzhou Weather in September
Suzhou in September sees high daytime temperatures of 29°C (84°F) and nighttime lows of 22°C (72°F). Rainfall is fairly high this month at around 99 mm (3.9 in), so pack a rain jacket to stay dry.
Rainfall in Suzhou in September
Historically, the month has about 13 days of rain, averaging 99 mm (3.9 in) in total. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Suzhou in September
Suzhou has perfect weather in September, with days reaching 29°C (84°F) and nights cooling to 22°C (72°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 22°C (72°F), the nights are warm and generally comfortable.
Sunshine in Suzhou in September
The area enjoys a moderate level of sunlight, with around 172 hours. It's a good balance between sunny and cloudy days.If your ideal day consists of dry skies and pleasant temperatures, September and October typically offer the best circumstances for Suzhou.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit China, check out our Suzhou's climate page.
Suzhou Temperature in September
Min Temperature
22°C (72°F)
Max Temperature
29°C (84°F)
Chance of Rain
44%
Precipitation
99 mm (3.9 in)
Rainy days
13 days
Humidity
74%
Sunshine
172 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Suzhou typically drop from around 30°C (86°F) at the start of September to approximately 26°C (79°F) by the end. Nights are warm, with lows typically ranging from 19°C (66°F) to 24°C (75°F).
Average temperatures in September
Historical weather for Suzhou in September
Browse day-by-day weather records for Suzhou spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Suzhou historical weather extremes in September
The extremes listed below come from historical weather data collected in Suzhou from 1976 through 2025.
- The hottest September day on record in Suzhou reached 38°C (100°F) (September 7, 1995).
- Suzhou experienced its chilliest September day on September 23, 1980, reaching only 19°C (66°F).
- Suzhou registered its coldest September night on September 27, 1988, with temperatures dropping to 11°C (52°F).
Best Places in China in September
Find out more about the weather in China and which places have the best travel conditions in this month. See all of China in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Suzhou in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Suzhou in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit China, check out our Suzhou's climate page.
Temperature Rainfall Sunshine Humidity
See the full Suzhou climate overview or explore weather in China.
