May 20 is generally a great time to visit Lyon. While there is a slight chance of rain (25%), showers are usually brief. Expect comfortable 21°C weather. Moderate travel demand makes this an excellent time for a balanced Lyon experience.
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Essential Travel Info for Lyon
Currency
EUR
€ Euro
Language
French
Driving
Right side
Connect
Lyon has 5G from all French carriers. Wi...
Safety
High Safety
GPI: 1.895
Lyon Weather Forecast for May 20
"Mild & Comfortable. Expect average highs of 21.1°C. 25% chance of rain."
What to Wear in Lyon in May
Based on historical data for May 20, Lyon typically experiences temperatures between 11.1°C and 21.1°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (25% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Lyon
Smart Suitcase
- Light Jacket
- Long Pants
Average High
21.1°C
Daytime Peak
Average Low
11.1°C
Nighttime Low
Feels Like
21.2°C
☀️ Feels accurate
Rain Chance
25%
Avg 1.6mm if it rains
Cloud Cover
56%
Overcast
Pressure
1015.8 hPa
Medium volatility
Lyon Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 87% 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 - 20:00
Type I-II
🔴 17 min to burn
Type III-IV
🟡 26 min to burn
Type V-VI
🟢 43 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
15°C
Pleasant
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in France
Flight Traffic
Moderate
49/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~120
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Lyon
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:05
☀️ Noon
12:38
🌇 Sunset
20:11
⏱️ Daylight
15h 6m
Wind Speed
16.3 km/h
Gentle breeze
Sunshine
10.8 hrs
Direct Sun (Cloud-free)
Humidity
68%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Lyon
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Lyon
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.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Lyon on May 20 averages 21.1°C with a 25% precipitation probability. Wedding/Outdoor Event Score: 96/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Lyon Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
May 27
22.7°C • 19% rain
Score
99
May 22
21.4°C • 21% rain
Score
98
May 23
21.6°C • 20% rain
Score
98
💡 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 Lyon Worth Visiting on May 20?
Planning a trip to Lyon on May 20? 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 21.1°C with a 25% historical precipitation risk.
✈️ Travel Logistics: Approximately 120 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for France, including COVID-19.
📊 Historical Extremes: The hottest May 20 recorded in the last 30 years saw temperatures hit 29.7°C in 2022, while the coldest dropped to 6.2°C in 2021.