30YearWeather
Chengdu, September 30
Chengdu street view during September
Historical Weather Analysis

Chengdu Weather on September 30 — Best Time to Visit?

Based on 30 years of historical data, we have the answer.

clear-day

24.7°C

High

18.4°C

Low

20%

Rain

☀️ Feels like 25.6°C (humidity)

partly-cloudy-day
YES, GOOD CHOICE
Peak Season

September 30 is generally a great time to visit Chengdu. While there is a slight chance of rain (20%), showers are usually brief. Expect comfortable 25°C weather. Chengdu is currently in its most popular travel window, meaning vibrant crowds and premium pricing.

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 30

"Mild & Comfortable. Expect average highs of 24.7°C. 20% chance of rain."

What to Wear in Chengdu in September

Based on historical data for September 30, Chengdu typically experiences temperatures between 18.4°C and 24.7°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (20% rain probability), but checking the forecast before heading out is always wise.

Complete Packing Guide

Weekly breakdown & essential items for Chengdu

View Guide

Smart Suitcase

  • T-Shirt
  • Light Clothing

Average High

extreme-hot

24.7°C

Daytime Peak

Average Low

extreme-cold

18.4°C

Nighttime Low

Feels Like

partly-cloudy-day

25.6°C

☀️ Feels accurate

Rain Chance

rain

20%

Avg 1.5mm if it rains

Cloud Cover

cloudy

78%

Light drizzle

Pressure

pressure

1013.6 hPa

Medium volatility

Chengdu Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

91%Highly Predictable

Based on 10 years of data

Temperature
±2.1°CStable
Precipitation
10-50%Moderate

🎯 This date historically delivers consistent weather 91% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

2.5Low
036811+

Protection Needed

SPF 15 for extended outdoor time

Time to Sunburn

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?

76Good
TemperatureWarm
HumidityMuggy
WindLight Breeze

Dew Point

20.8°C

Humid/Sticky

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

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

06:57

☀️ Noon

12:55

🌇 Sunset

18:52

⏱️ Daylight

11h 55m

Golden Hour
Morning06:57 - 07:29
18:20 - 18:52Evening

Wind Speed

wind

10.1 km/h

Light breeze

Sunshine

clear-day

5.6 hrs

Direct Sun (Cloud-free)

Humidity

humidity

79%

Humid / Damp

Travel Intelligence

Exclusive flight analytics & health data for Chengdu

Smart Flight Estimator

Airport-to-Airport Logistics

unlock smart flight estimates

Add your home location in settings to see airport details.

Travel Health & Safety in Chengdu

Travel Comfort Index

Real-time tourism conditions

Weather Quality

☀️ Excellent

84/100

Tourist Crowds

🟡 Busy

85/100

Price Level

💰💰💰 Expensive

90/100

Health & Wellbeing

Meteo-Health Forecast

85Score
Atmospheric Pressure1013.6 hPa
Volatility:Medium
Migraine RiskMedium

Moderate fluctuations. Some sensitivity possible.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexFair

Moderate fish activity expected.

Air Quality Forecast
192AQI
Unhealthy
PM2.5 Concentration124.8 µg/m³

Unhealthy. Everyone should reduce outdoor activities.

Regional Safety Profile

High

Seismic Activity

Active seismic zone. Multiple earthquakes per year.

Total events (30y):369
In Sep (30y):10
Last in Sep:2025-09-30
💡 Earthquake risk elevated. Download a seismic alert app.

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 30 averages 24.7°C with a 20% precipitation probability. Wedding/Outdoor Event Score: 96/100."

— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology

Chengdu Weather History (2010–2024)

Temperature History

Loading chart...

Hall of Fame

Records from last 10 years

Hottest
2021
28.8°C
Coldest
2024
16.3°C
Rainiest
2018
4.5mm

Compare Other Cities

Same date (September 30) in other destinations

🌍 Explore the same date in different destinations around the world

📍 Is Chengdu Worth Visiting on September 30?

Planning a trip to Chengdu on September 30? 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 24.7°C with a 20% 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 30 recorded in the last 30 years saw temperatures hit 28.8°C in 2021, while the coldest dropped to 16.3°C in 2024.

Chengdu Weather FAQ