The month in detail
What to expect in September
Autumn in Chengdu is often underrated: 79°F, golden light and declining crowds. An interesting window. Expect rain on 31% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if May (8.0/10) remains theoretically better.
September ranks 3 out of 12 months in Chengdu. Compared to August: −9°F daytime, 12 pts fewer rainy days, −1.9h of sun per day.
This month's conditions
What it's like in September
UV index
7 · high
sunscreen and hat advised
Feels like
muggy at times
19°
Daylight
12.2h of daylight
Air quality
poor
AQI 86
Compare
Is September the right month?
The best month in Chengdu is May (8.0/10), 0.4 pt higher than September.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Chengdu
Expedia →
Activities
Tours, tickets, experiences
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Flights
Multi-airline comparator
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🎟️ Activities & tours · Chengdu
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a city break.
Country · China
🗣️LanguageMandarin
💶CurrencyYuan renminbi (¥)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘCheap · 2/5
🌡️ Climate
🌍Climate typeTemperate
📈Climate trend ⓘStable
🔥Hottest monthJuly · 88°F
❄️Coolest monthJanuary · 52°F
🌧️Rainiest month ⓘJuly · 45%
🏛️ City break
📅Tourist peak seasonJune → August
☔Indoor sights ⓘYear-round
🚇Public transportGood
Explore
Other destinations in September
If September doesn't convince you for this destination, compare with others.
Location
Where is Chengdu ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
ChinaTemperate climate with a 8.0 → 4.1 gap between best and worst month. 10 years of ERA5 data to choose by project.
30.57°N · 104.07°E
Questions
Frequently asked questions
What is the best time to visit Chengdu?
May is the best month with 81°F highs, 64°F lows, 3.9h of sunshine and 25.0% rainy days. The months of May & April offer comparable conditions.
How many hours of sunshine does Chengdu get in May?
Chengdu averages 3.9 sunshine hours per day in May. It is the sunniest month with a climate score of 7.5/10.
What is the rainiest month in Chengdu?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Chengdu in May?
In May, overnight lows reach 64°F, while afternoon highs average 81°F.
Is Chengdu good in winter?
In winter (December-February), Chengdu scores 4.1/10 on average — Difficult period — prefer the peak season.. The best month overall remains May with a score of 7.5/10.
When should you avoid Chengdu?
January is the most difficult month to visit Chengdu, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Do you need sun protection in Chengdu in September?
The average UV index reaches 7 in September in Chengdu (high), with about 12.2h of daylight. Sunscreen and hat advised.