April 21 is generally a great time to visit Chengdu. While there is a slight chance of rain (23%), showers are usually brief. Expect comfortable 25°C weather. It's a lively time to explore Chengdu, with most attractions operating at full capacity.
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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 April 21
"Mild & Comfortable. Expect average highs of 24.9°C. 23% chance of rain."
What to Wear in Chengdu in April
Based on historical data for April 21, Chengdu typically experiences temperatures between 15.6°C and 24.9°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (23% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Chengdu
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
24.9°C
Daytime Peak
Average Low
15.6°C
Nighttime Low
Feels Like
25.5°C
☀️ Feels accurate
Rain Chance
23%
Avg 1.3mm if it rains
Cloud Cover
74%
Light drizzle
Pressure
1009.6 hPa
Medium volatility
Chengdu Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
06:00 - 10:00
16:00 - 19:00
Type I-II
🔴 21 min to burn
Type III-IV
🟡 32 min to burn
Type V-VI
🟢 53 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
18.1°C
Noticeable
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in China
Flight Traffic
Busy
74/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~244
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Chengdu
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:31
☀️ Noon
13:03
🌇 Sunset
19:35
⏱️ Daylight
13h 4m
Wind Speed
13.2 km/h
Gentle breeze
Sunshine
7.5 hrs
Direct Sun (Cloud-free)
Humidity
66%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Chengdu
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Chengdu
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
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 April 21 averages 24.9°C with a 23% precipitation probability. Wedding/Outdoor Event Score: 95/100."
— 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
Compare Other Cities
Same date (April 21) in other destinations
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📍 Is Chengdu Worth Visiting on April 21?
Planning a trip to Chengdu on April 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 24.9°C with a 23% historical precipitation risk.
✈️ Travel Logistics: Approximately 244 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 April 21 recorded in the last 30 years saw temperatures hit 29.6°C in 2025, while the coldest dropped to 11.7°C in 2017.