August 18 is generally a great time to visit Lucerne. While there is a slight chance of rain (39%), showers are usually brief. Expect comfortable 24°C weather. Lucerne is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Lucerne
Currency
CHF
Fr. Swiss franc
Language
French
+3 more
Driving
Right side
Connect
As of June 2022, Lucerne has 5G from all...
Safety
Very High Safety
GPI: 1.357
Lucerne Weather Forecast for August 18
"Mild & Comfortable. Expect average highs of 23.9°C. 39% chance of rain."
What to Wear in Lucerne in August
Based on historical data for August 18, Lucerne typically experiences temperatures between 16.1°C and 23.9°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 39% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Lucerne
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
23.9°C
Daytime Peak
Average Low
16.1°C
Nighttime Low
Feels Like
24.6°C
☀️ Feels accurate
Rain Chance
39%
Avg 4.1mm if it rains
Cloud Cover
60%
Overcast
Pressure
1016.7 hPa
Low volatility
Lucerne Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 80% 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
🔴 22 min to burn
Type III-IV
🟡 33 min to burn
Type V-VI
🟢 55 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
19.6°C
Noticeable
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Switzerland
Flight Traffic
High
99/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~542
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Lucerne
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:28
☀️ Noon
12:32
🌇 Sunset
19:35
⏱️ Daylight
14h 6m
Wind Speed
6.7 km/h
Light breeze
Sunshine
10.4 hrs
Direct Sun (Cloud-free)
Humidity
77%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Lucerne
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Lucerne
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
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, Lucerne on August 18 averages 23.9°C with a 39% precipitation probability. Wedding/Outdoor Event Score: 91/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Lucerne Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
August 12
24.5°C • 32% rain
Score
94
August 11
24.4°C • 35% rain
Score
92
August 13
24.6°C • 37% rain
Score
92
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (August 18) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Lucerne Worth Visiting on August 18?
Planning a trip to Lucerne on August 18? 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 23.9°C with a 39% historical precipitation risk.
✈️ Travel Logistics: Approximately 542 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 7 vaccinations are recommended for Switzerland, including COVID-19.
📊 Historical Extremes: The hottest August 18 recorded in the last 30 years saw temperatures hit 29.9°C in 2023, while the coldest dropped to 14.8°C in 2021.