Chengdu
September
Weather in Chengdu for September 2025
Your guide to Chengdu weather in September - trends and predictions
In general, the average temperature in Chengdu at the beginning of September is 29.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25 °C by the end of September.
Chengdu experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 159 mm.
Is September a good time to visit Chengdu? check out the best time to travel to Chengdu page.
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Temperatures
Rain 🌧️
More
3
Dry days
27
Rainy days
0
Snow days
27°/21°
Temperatures
10 km/h
Avg max wind
75 %
Avg humidity
Chengdu in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2 30° | 3  28° | 4  29° | 5  31° | 6 30° | 7 29° |
| 8  29° | 9 29° | 10 28° | 11 29° | 12 29° | 13 27° | 14 26° |
| 15 25° | 16 27° | 17 28° | 18 27° | 19 28° | 20  29° | 21 27° |
| 22 27° | 23 25° | 24 25° | 25 25° | 26 24° | 27 25° | 28  26° |
| 29 26° | 30 24° |
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Temperatures trend during September in Chengdu
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Moderate rain at times | 28° /20° | 5.5 mm | 6 | |
| 2 Sept. | Moderate rain at times | 30° /21° | 2.3 mm | 7 | |
| 3 Sept. | Patchy rain possible | 28° /21° | 5.1 mm | 7 | |
| 4 Sept. | Partly cloudy | 29° /20° | 7.2 mm | 7 | |
| 5 Sept. | Overcast | 31° /20° | 2.7 mm | 7 | |
| 6 Sept. | Light rain shower | 30° /21° | 3.6 mm | 7 | |
| 7 Sept. | Partly cloudy | 29° /21° | 5 mm | 7 | |
| 8 Sept. | Cloudy | 29° /21° | 2.2 mm | 6 | |
| 9 Sept. | Partly cloudy | 29° /21° | 7.8 mm | 7 | |
| 10 Sept. | Light rain shower | 28° /20° | 14.9 mm | 6 | |
| 11 Sept. | Moderate or heavy rain shower | 29° /20° | 13.9 mm | 7 | |
| 12 Sept. | Cloudy | 29° /20° | 4 mm | 6 | |
| 13 Sept. | Moderate rain at times | 27° /21° | 9.8 mm | 6 | |
| 14 Sept. | Moderate or heavy rain shower | 26° /20° | 26.4 mm | 6 | |
| 15 Sept. | Moderate or heavy rain shower | 25° /20° | 8.2 mm | 6 | |
| 16 Sept. | Light rain shower | 27° /21° | 4.9 mm | 6 | |
| 17 Sept. | Partly cloudy | 28° /21° | 2.4 mm | 7 | |
| 18 Sept. | Patchy rain possible | 27° /21° | 1.8 mm | 6 | |
| 19 Sept. | Partly cloudy | 28° /22° | 1.5 mm | 7 | |
| 20 Sept. | Sunny | 29° /20° | 2.3 mm | 7 | |
| 21 Sept. | Overcast | 27° /20° | 0.1 mm | 7 | |
| 22 Sept. | Patchy rain possible | 27° /21° | 2.8 mm | 6 | |
| 23 Sept. | Patchy rain possible | 25° /20° | 5.4 mm | 6 | |
| 24 Sept. | Patchy rain possible | 25° /19° | 2.1 mm | 6 | |
| 25 Sept. | Patchy rain possible | 25° /19° | 2.6 mm | 6 | |
| 26 Sept. | Patchy rain possible | 24° /19° | 9.7 mm | 5 | |
| 27 Sept. | Patchy rain possible | 25° /20° | 1.3 mm | 6 | |
| 28 Sept. | Heavy rain at times | 26° /19° | 2.6 mm | 6 | |
| 29 Sept. | Partly cloudy | 26° /18° | 0.4 mm | 6 | |
| 30 Sept. | Patchy rain possible | 24° /19° | 0.5 mm | 6 | |
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Important Notice
Our weather forecast for Chengdu 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 Chengdu forecast closer to your planned date for the most up-to-date weather information.
Chengdu in September - FAQ
What are the expected maximum and minimum temperatures in Chengdu during September?
During September, expect a variety of temperatures with highs around 27° and lows near 21°, suitable for diverse activities and preferences.
How much rainfall should be expected in Chengdu during September?
Significant rainfall exceeding 159 mm is expected in Chengdu during September, occurring over more than 27 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Chengdu during September?
The average wind speed in Chengdu during September is 10 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Chengdu in September?
As you prepare for your trip to Chengdu 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 Chengdu, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Chengdu
Explore the daily rainfall trends and prepare for Chengdus September weather 💧
UV exposure in Chengdu during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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