Jiangsu (Suzhou)
September
Weather in Jiangsu for September 2026
Your guide to Jiangsu weather in September - trends and predictions
In general, the average temperature in Jiangsu at the beginning of September is 33.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 28.1 °C by the end of September.
Jiangsu experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 165.5 mm.
Is September a good time to visit Jiangsu? check out the best time to travel to Jiangsu page.
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Temperatures
Rain 🌧️
More
9
Dry days
21
Rainy days
0
Snow days
30°/24°
Temperatures
17 km/h
Avg max wind
78 %
Avg humidity
Jiangsu Weather September
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What’s the Weather Like in Jiangsu This September?
Discover the average temperatures and weather trends across Jiangsu’s cities this September.
Temperatures trend during September in Jiangsu
See the weather trend as well as the moving average line
September weather in Jiangsu day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Thundery outbreaks possible | 34° /25° | 1.4 mm | 7 | |
| 2 Sept. |  Light rain shower | 33° /25° | 4.6 mm | 8 | |
| 3 Sept. |  Light drizzle | 32° /25° | 1 mm | 7 | |
| 4 Sept. |  Partly cloudy | 34° /25° | 1 mm | 8 | |
| 5 Sept. | Patchy rain possible | 34° /25° | 0.4 mm | 7 | |
| 6 Sept. |  Cloudy | 35° /25° | 0.3 mm | 8 | |
| 7 Sept. | Patchy rain possible | 35° /25° | 1 mm | 8 | |
| 8 Sept. | Patchy rain possible | 34° /24° | 2.8 mm | 7 | |
| 9 Sept. | Patchy rain possible | 32° /25° | 6 mm | 7 | |
| 10 Sept. | Light rain shower | 32° /23° | 3.8 mm | 7 | |
| 11 Sept. |  Moderate or heavy rain shower | 28° /24° | 13.1 mm | 6 | |
| 12 Sept. | Patchy rain possible | 33° /25° | 18 mm | 7 | |
| 13 Sept. |  Sunny | 31° /25° | 1.1 mm | 7 | |
| 14 Sept. | Patchy rain possible | 33° /25° | 6.1 mm | 7 | |
| 15 Sept. | Light rain shower | 32° /24° | 1.6 mm | 7 | |
| 16 Sept. |  Torrential rain shower | 31° /25° | 42.1 mm | 7 | |
| 17 Sept. | Thundery outbreaks possible | 32° /24° | 1.8 mm | 7 | |
| 18 Sept. | Partly cloudy | 30° /23° | 0.4 mm | 7 | |
| 19 Sept. | Light rain shower | 30° /24° | 5.8 mm | 7 | |
| 20 Sept. | Moderate or heavy rain shower | 26° /23° | 36.2 mm | 6 | |
| 21 Sept. | Patchy rain possible | 27° /20° | 0.4 mm | 6 | |
| 22 Sept. | Patchy rain possible | 26° /19° | 0.8 mm | 6 | |
| 23 Sept. |  Overcast | 28° /20° | 1.2 mm | 7 | |
| 24 Sept. | Light rain shower | 25° /22° | 9 mm | 6 | |
| 25 Sept. | Patchy rain possible | 26° /22° | 0.2 mm | 6 | |
| 26 Sept. | Patchy rain possible | 30° /22° | 0.1 mm | 7 | |
| 27 Sept. | Patchy rain possible | 30° /22° | 0.9 mm | 7 | |
| 28 Sept. | Sunny | 30° /21° | 0.8 mm | 7 | |
| 29 Sept. | Patchy rain possible | 29° /21° | 0.9 mm | 7 | |
| 30 Sept. | Light rain shower | 27° /22° | 2.7 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Jiangsu in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Jiangsu forecast closer to your planned date for the most up-to-date weather information.
Change Month
Jiangsu weather in September vs August vs October
Compare September weather in Jiangsu with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 34°/26° | 30°/24° | 23°/17° |
| Rainfall | 63 mm | 165 mm | 69 mm |
| Wind | 14.5 km/h | 16.7 km/h | 16.8 km/h |
| Humidity | 72% | 78% | 73% |
| Rainy days | 14 days | 21 days | 15 days |
| Dry days | 17 days | 9 days | 16 days |
Planning a trip to Jiangsu? Discover the best time to visit
Jiangsu in September - FAQ
What are the expected maximum and minimum temperatures in Jiangsu during September?
During September, expect a variety of temperatures with highs around 30° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Jiangsu during September?
Significant rainfall exceeding 165.5 mm is expected in Jiangsu during September, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Jiangsu during September?
The average wind speed in Jiangsu during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Jiangsu
Explore the daily rainfall trends and prepare for Jiangsus September weather 💧
Typically, Jiangsu has 21 rainy days in September with a total of 165.5 mm of rainfall.
UV exposure in Jiangsu during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
What to pack to Jiangsu in September?
Warm & sunny · highs around 30 °C, frequent showers
As you prepare for your trip to Jiangsu in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Jiangsu, during September, is comfortable and enjoyable, regardless of the weather conditions.
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