Best Time to Visit Chengdu
China · Humid Subtropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
Recommended Months
Based on temperature comfort, low precipitation, and sunshine hours, the best time to visit Chengdu is:
September → May → June
September scores 59/100 — the highest-rated month for travel.
Monthly Ratings (0-100)
Scores are weighted: temperature comfort (50%), low precipitation (30%), sunshine (20%). Higher is better.
| Month | Overall Score | Temp Comfort | Precipitation | Sunshine | Bar |
|---|---|---|---|---|---|
| January | 25 | 20 | 49 | 0 | |
| February | 26 | 32 | 34 | 0 | |
| March | 30 | 60 | 0 | 0 | |
| April | 38 | 76 | 0 | 0 | |
| May | 49 | 98 | 0 | 0 | |
| June | 44 | 88 | 0 | 0 | |
| July | 41 | 82 | 0 | 0 | |
| August | 40 | 80 | 0 | 0 | |
| September | 49 | 98 | 0 | 0 | |
| October | 36 | 72 | 0 | 0 | |
| November | 39 | 51 | 46 | 0 | |
| December | 26 | 21 | 51 | 0 |
Monthly Temperature Comfort
| Month | Mean Temp | Comfort Level |
|---|---|---|
| January | 7.1°C (44.8°F) | Cool (0-9°C) |
| February | 9.5°C (49.1°F) | Cool (0-9°C) |
| March | 14.9°C (58.8°F) | Mild (10-17°C) |
| April | 18.3°C (64.9°F) | Warm (18-24°C) |
| May | 22.5°C (72.5°F) | Warm (18-24°C) |
| June | 25.5°C (77.9°F) | Hot (25-29°C) |
| July | 26.7°C (80.1°F) | Hot (25-29°C) |
| August | 27.1°C (80.8°F) | Hot (25-29°C) |
| September | 23.3°C (73.9°F) | Warm (18-24°C) |
| October | 17.5°C (63.5°F) | Mild (10-17°C) |
| November | 13.2°C (55.8°F) | Mild (10-17°C) |
| December | 7.2°C (45.0°F) | Cool (0-9°C) |
Monthly Precipitation Rating
| Month | Rainfall (mm) | Rainy Days | Rating |
|---|---|---|---|
| January | 17.0 mm | 13.8 | Dry |
| February | 22.1 mm | 14.6 | Dry |
| March | 40.0 mm | 19.2 | Moderate |
| April | 93.0 mm | 19.6 | Wet |
| May | 100.3 mm | 19.2 | Very Wet |
| June | 97.6 mm | 17.4 | Wet |
| July | 247.5 mm | 22.6 | Very Wet |
| August | 295.2 mm | 20.4 | Very Wet |
| September | 121.0 mm | 22.0 | Very Wet |
| October | 65.5 mm | 21.6 | Wet |
| November | 18.1 mm | 13.2 | Dry |
| December | 16.3 mm | 11.6 | Dry |
Monthly Sunshine Rating
| Month | Sunshine (hrs/day) | Rating |
|---|---|---|
| January | 4.5 hrs | Moderate |
| February | 5.0 hrs | Moderate |
| March | 6.0 hrs | Good |
| April | 6.2 hrs | Good |
| May | 6.9 hrs | Good |
| June | 7.3 hrs | Good |
| July | 8.2 hrs | Excellent |
| August | 8.5 hrs | Excellent |
| September | 7.1 hrs | Good |
| October | 4.2 hrs | Moderate |
| November | 4.5 hrs | Moderate |
| December | 4.4 hrs | Moderate |
Season-by-Season Breakdown
Spring (Mar-May)
Temperature: 18.6°C (65.5°F)
Rainfall: 77.8mm avg
Sunshine: 6.4 hrs/day
Humidity: 68.0%
Rainy Days: 19.3/mo
Mild transitional weather — comfortable for most activities.
Summer (Jun-Aug)
Temperature: 26.4°C (79.5°F)
Rainfall: 213.4mm avg
Sunshine: 8.0 hrs/day
Humidity: 74.3%
Rainy Days: 20.1/mo
This is the warm season. Ideal for outdoor activities but be prepared for heat.
Autumn (Sep-Nov)
Temperature: 18.0°C (64.4°F)
Rainfall: 68.2mm avg
Sunshine: 5.3 hrs/day
Humidity: 78.6%
Rainy Days: 18.9/mo
Mild transitional weather — comfortable for most activities.
Winter (Dec-Feb)
Temperature: 7.9°C (46.2°F)
Rainfall: 18.5mm avg
Sunshine: 4.6 hrs/day
Humidity: 74.9%
Rainy Days: 13.3/mo
This is the cool season. Pack warm layers and plan indoor activities.
Frequently Asked Questions
What is the best time to visit Chengdu?
Based on our data-driven analysis, the best months to visit Chengdu are September, May, June, when temperatures are comfortable, rainfall is lower, and sunshine is plentiful. September scores 59/100, the highest-rated month.
What is the hottest month in Chengdu?
August is the hottest month with an average temperature of 27.1°C (80.8°F).
What is the coldest month in Chengdu?
January is the coldest month with an average temperature of 7.1°C (44.8°F).
When is the rainy season in Chengdu?
August is the wettest month with an average of 295.2mm of precipitation. Chengdu experiences about 215.0 rainy days per year. The driest month is December with 16.3mm.
What should I pack for a trip to Chengdu?
Packing recommendations depend on the season of your visit. Based on the climate data, pack lightweight, breathable clothing if visiting during the warm months (August is hottest at 27.1°C). For cooler months, bring layers and a warm jacket (January averages 7.1°C). A waterproof jacket or umbrella is recommended year-round as Chengdu receives 1134.0mm of annual precipitation. Sun protection is important, especially during months with high UV index.
Chengdu is famous for its overcast skies, and the data confirms why. The city sits in the Sichuan Basin, which creates a unique microclimate with persistent cloud cover. I visited during the pandas' outdoor season and found the mild temperatures perfect for the city's outdoor attractions. The best time to visit is March to June and September to November, when the weather is mildest.
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 30.57°, 104.07°. Timezone: Asia/Shanghai. Last updated: 2026-07-30.