May 20 is generally a great time to visit Xi'an. While there is a slight chance of rain (15%), showers are usually brief. Expect comfortable 29°C weather. You'll find plenty of company in Xi'an this month as tourism activity remains quite robust.
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Essential Travel Info for Xi'an
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 May 20
"Warm & Sunny. Expect average highs of 28.9°C. 15% chance of rain."
What to Wear in Xi'an in May
Based on historical data for May 20, Xi'an typically experiences temperatures between 16°C and 28.9°C. We recommend packing t-shirt, light clothing, layers (onion system) to stay comfortable. Trends suggest it will stay mostly dry (15% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Xi'an
Smart Suitcase
- T-Shirt
- Light Clothing
- Layers (Onion System)
Average High
28.9°C
Daytime Peak
Average Low
16°C
Nighttime Low
Feels Like
29.5°C
🔥 Feels accurate
Rain Chance
15%
Avg 0.8mm if it rains
Cloud Cover
63%
Overcast
Pressure
1007.8 hPa
Medium volatility
Xi'an Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ This date historically delivers consistent weather 75% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 19:00
Type I-II
🔴 15 min to burn
Type III-IV
🟡 23 min to burn
Type V-VI
🟢 38 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
17.4°C
Noticeable
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
Busy
67/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~355
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Xi'an
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:40
☀️ Noon
12:42
🌇 Sunset
19:43
⏱️ Daylight
14h 3m
Wind Speed
11.4 km/h
Light breeze
Sunshine
9.6 hrs
Direct Sun (Cloud-free)
Humidity
50%
Comfortable
Travel Intelligence
Exclusive flight analytics & health data for Xi'an
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Xi'an
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
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
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Xi'an on May 20 averages 28.9°C with a 15% precipitation probability. Wedding/Outdoor Event Score: 98/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Xi'an Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
May 16
27.6°C • 14% rain
Score
100
May 17
28.3°C • 12% rain
Score
100
May 18
28.8°C • 9% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (May 20) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Xi'an Worth Visiting on May 20?
Planning a trip to Xi'an on May 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 28.9°C with a 15% historical precipitation risk.
✈️ Travel Logistics: Approximately 355 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 May 20 recorded in the last 30 years saw temperatures hit 39°C in 2025, while the coldest dropped to 12.9°C in 2019.