Chengdu weather in September
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Chengdu September weather at a glance
In September, Chengdu averages 24.9°C, with typical highs of 29.1°C and lows of 21.6°C. The historical average is 16 wet days and 79% humidity.
Chengdu September temperature & humidity
Chengdu September rain & wet days
Pack a light rain jacket, waterproof pouch and quick-dry shoes. Keep an indoor stop available between outdoor activities.
What to wear in Chengdu in September
Choose breathable summer clothes and pack sun protection. Rain is frequent at roughly 16 days in the month; pack a rain jacket and water-resistant shoes.
- DaytimeBreathable short sleeves, hat and sunscreen · average high 29.1°C
- Morning & eveningLight layer for air-conditioned rooms · average low 21.6°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Chengdu September sunrise & sunset times
2026 September · Local time (Asia/Shanghai)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-09-01 | 06:40 | 19:27 | 12h 47m |
| 2026-09-15 | 06:48 | 19:10 | 12h 22m |
| 2026-09-30 | 06:56 | 18:51 | 11h 54m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
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Chengdu travel essentials
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Best months to visit Chengdu
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
September weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Chengdu weather like in September?
In September, Chengdu averages 24.9°C, with typical highs of 29.1°C and lows of 21.6°C. The historical average is 16 wet days and 79% humidity. Our weather-comfort rating for this month is challenging.
Does it rain a lot in Chengdu in September?
There are about 16 wet days in September. Pack a rain jacket and water-resistant shoes.
What should I wear in Chengdu in September?
Choose breathable summer clothes and pack sun protection. Rain is frequent at roughly 16 days in the month; pack a rain jacket and water-resistant shoes.
What are the best months to visit Chengdu?
Recent weather data rates May, November among the more comfortable months.
Where can I check Chengdu weather in September in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Chengdu in September?
On 2026-09-15, calculated sunrise is 06:48 and sunset is 19:10 in local time (Asia/Shanghai). Times vary by date and terrain.
Chengdu weather by month
More Greater China destinations in September
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations