30YearWeather
Xi'an, September 9
Xi'an street view during September
Historical Weather Analysis

Xi'an Weather on September 9 — Best Time to Visit?

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

cloudy

27.4°C

High

18.5°C

Low

27%

Rain

🔥 Feels like 29.5°C (humidity)

partly-cloudy-day
YES, GOOD CHOICE
Peak Season

September 9 is generally a great time to visit Xi'an. While there is a slight chance of rain (27%), showers are usually brief. Expect comfortable 27°C weather. Expect a bustling atmosphere in Xi'an right now—this is when the city truly comes alive with visitors.

Currency

CNY

¥ Chinese yuan

Language

Chinese

Driving

Right side

Connect

It's not very easy to make friends with ...

Safety

Moderate Safety

GPI: 2.01

Xi'an Weather Forecast for September 9

"Warm & Sunny. Expect average highs of 27.4°C. 27% chance of rain."

What to Wear in Xi'an in September

Based on historical data for September 9, Xi'an typically experiences temperatures between 18.5°C and 27.4°C. We recommend packing t-shirt, light clothing to stay comfortable. With a 27% chance of rain, keeping a raincoat or umbrella handy is a smart move.

Complete Packing Guide

Weekly breakdown & essential items for Xi'an

View Guide

Smart Suitcase

  • T-Shirt
  • Light Clothing

Average High

extreme-hot

27.4°C

Daytime Peak

Average Low

extreme-cold

18.5°C

Nighttime Low

Feels Like

partly-cloudy-day

29.5°C

🔥 Feels warmer

Rain Chance

rain

27%

Avg 2.6mm if it rains

Cloud Cover

cloudy

56%

Overcast

Pressure

pressure

1011.4 hPa

Low volatility

Xi'an Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

82%Highly Predictable

Based on 10 years of data

Temperature
±3.8°CModerate
Precipitation
14-41%Predictable

🎯 This date historically delivers consistent weather 82% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

3.1Moderate
036811+

Protection Needed

SPF 30 recommended

Safe Sun Windows
Morning

06:00 - 10:00

Afternoon

16:00 - 19:00

Time to Sunburn

Type I-II

🔴 26 min to burn

Type III-IV

🟡 39 min to burn

Type V-VI

🟢 65 min to burn

UV estimate based on latitude, season & cloud cover. Actual UV may vary.

Outdoor Comfort

How pleasant is it outside?

71Good
TemperatureHot
HumidityMuggy
WindLight Breeze

Dew Point

21.4°C

Humid/Sticky

Heat Index

29.5°C

Feels hotter

🙂 Best outdoor time:
Any time during daylight hours

Travel & Logistics Insights

Local Calendar

Business Day

Standard hours in China

Flight Traffic

High

95/100 pressure index

Health Advisory

Required

2 vaccines • View Details →

Landing Slots

~500

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Xi'an

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

06:24

☀️ Noon

12:43

🌇 Sunset

19:02

⏱️ Daylight

12h 38m

Golden Hour
Morning06:24 - 06:57
18:29 - 19:02Evening

Wind Speed

wind

9.4 km/h

Light breeze

Sunshine

clear-day

7.8 hrs

Direct Sun (Cloud-free)

Humidity

humidity

70%

Humid / Damp

Travel Intelligence

Exclusive flight analytics & health data for Xi'an

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 Xi'an

Travel Comfort Index

Real-time tourism conditions

Weather Quality

⛅ Good

78/100

Tourist Crowds

🟡 Busy

85/100

Price Level

💰💰💰 Expensive

90/100

Health & Wellbeing

Meteo-Health Forecast

100Score
Atmospheric Pressure1011.4 hPa
Volatility:Low
Migraine RiskLow

Stable conditions. Low risk of headaches.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexFair

Moderate fish activity expected.

Air Quality Forecast
170AQI
Unhealthy
PM2.5 Concentration173.2 µg/m³

Unhealthy. Everyone should reduce outdoor activities.

Regional Safety Profile

Low

Seismic Activity

Rare minor tremors. Buildings are earthquake-resistant.

Total events (30y):2
In Sep (30y):0
💡 Very rare tremors. Standard travel precautions apply.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Xi'an on September 9 averages 27.4°C with a 27% precipitation probability. Wedding/Outdoor Event Score: 96/100."

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

Xi'an Weather History (2010–2024)

Temperature History

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Hall of Fame

Records from last 10 years

Hottest
2024
34.5°C
Coldest
2018
15.9°C
Rainiest
2019
17.4mm

Better Alternatives Nearby

Consider these dates within ±7 days

💡 Moving your event by a few days could significantly improve weather conditions

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Same date (September 9) in other destinations

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📍 Is Xi'an Worth Visiting on September 9?

Planning a trip to Xi'an on September 9? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 27.4°C with a 27% historical precipitation risk.

✈️ Travel Logistics: Approximately 500 landing slots available daily during this period, indicating peak tourist activity.

💉 Health Advisory: 10 vaccinations are recommended for China, including COVID-19.

📊 Historical Extremes: The hottest September 9 recorded in the last 30 years saw temperatures hit 34.5°C in 2024, while the coldest dropped to 15.9°C in 2018.

Xi'an Weather FAQ