August 15 is generally a great time to visit Lyon. While there is a slight chance of rain (17%), showers are usually brief. Expect comfortable 28°C weather. Lyon is currently in its most popular travel window, meaning vibrant crowds and premium pricing. Note: August 15 is Assumption Day in Lyon, so expect special events, closures, and festive atmosphere.
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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 August 15
"Warm & Sunny. Expect average highs of 28.3°C. 17% chance of rain."
What to Wear in Lyon in August
Based on historical data for August 15, Lyon typically experiences temperatures between 17.4°C and 28.3°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (17% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Lyon
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
28.3°C
Daytime Peak
Average Low
17.4°C
Nighttime Low
Feels Like
30.2°C
🔥 Minor difference
Rain Chance
17%
Avg 1.1mm if it rains
Cloud Cover
46%
Overcast
Pressure
1015.7 hPa
Low volatility
Lyon Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 88% 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
🔴 19 min to burn
Type III-IV
🟡 29 min to burn
Type V-VI
🟢 48 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
20.3°C
Humid/Sticky
Heat Index
30.2°C
Feels hotter
🙂 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Holiday
Assumption Day
Flight Traffic
High
90/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~223
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Lyon
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:41
☀️ Noon
12:46
🌇 Sunset
19:51
⏱️ Daylight
14h 9m
Wind Speed
13.4 km/h
Gentle breeze
Sunshine
11.6 hrs
Direct Sun (Cloud-free)
Humidity
62%
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
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
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 August 15 averages 28.3°C with a 17% precipitation probability. Wedding/Outdoor Event Score: 99/100."
— 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
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (August 15) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Lyon Worth Visiting on August 15?
Planning a trip to Lyon on August 15? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 28.3°C with a 17% historical precipitation risk.
🎉 Local Event: The date coincides with Assumption Day, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 223 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 August 15 recorded in the last 30 years saw temperatures hit 35.8°C in 2025, while the coldest dropped to 14.3°C in 2019.