September 20 is generally a great time to visit Chengdu. While there is a slight chance of rain (32%), showers are usually brief. Expect comfortable 26°C weather. As it's peak season for Chengdu, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Chengdu
Currency
CNY
¥ Chinese yuan
Language
Chinese
Driving
Right side
Connect
China's country code is86. Chengdu's ar...
Safety
Moderate Safety
GPI: 2.01
Chengdu Weather Forecast for September 20
"Warm & Sunny. Expect average highs of 25.8°C. 32% chance of rain."
What to Wear in Chengdu in September
Based on historical data for September 20, Chengdu typically experiences temperatures between 19.3°C and 25.8°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 32% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Chengdu
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
25.8°C
Daytime Peak
Average Low
19.3°C
Nighttime Low
Feels Like
26.8°C
☀️ Minor difference
Rain Chance
32%
Avg 3.3mm if it rains
Cloud Cover
77%
Light drizzle
Pressure
1012.5 hPa
Medium volatility
Chengdu Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 91% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 32 min to burn
Type III-IV
🟡 48 min to burn
Type V-VI
🟢 80 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
21.7°C
Humid/Sticky
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Morning hours (before 11 AM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in China
Flight Traffic
High
98/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~322
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Chengdu
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:51
☀️ Noon
12:58
🌇 Sunset
19:05
⏱️ Daylight
12h 13m
Wind Speed
10.2 km/h
Light breeze
Sunshine
6.1 hrs
Direct Sun (Cloud-free)
Humidity
78%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Chengdu
Smart Flight Estimator
Airport-to-Airport Logistics
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Add your home location in settings to see airport details.
Travel Health & Safety in Chengdu
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Mild discomfort possible for arthritic conditions.
Moderate fish activity expected.
Unhealthy. Everyone should reduce outdoor activities.
Regional Safety Profile
Seismic Activity
Active seismic zone. Multiple earthquakes per year.
Travel Alert: This region has elevated natural risks. We recommend registering with your embassy and keeping emergency numbers handy.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Chengdu on September 20 averages 25.8°C with a 32% precipitation probability. Wedding/Outdoor Event Score: 90/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Chengdu Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 20) in other destinations
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🌍 Explore the same date in different destinations around the world
📍 Is Chengdu Worth Visiting on September 20?
Planning a trip to Chengdu on September 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 25.8°C with a 32% historical precipitation risk.
✈️ Travel Logistics: Approximately 322 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 10 vaccinations are recommended for China, including COVID-19.
📊 Historical Extremes: The hottest September 20 recorded in the last 30 years saw temperatures hit 32.8°C in 2024, while the coldest dropped to 17.3°C in 2021.