August 20 is generally a great time to visit Vienna. While there is a slight chance of rain (22%), showers are usually brief. Expect comfortable 26°C weather. Expect a bustling atmosphere in Vienna right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Vienna
Currency
EUR
€ Euro
Language
German
Driving
Right side
Connect
As of Sep 2025, the entire city and its ...
Safety
Very High Safety
GPI: 1.3
Vienna Weather Forecast for August 20
"Warm & Sunny. Expect average highs of 26.2°C. 22% chance of rain."
What to Wear in Vienna in August
Based on historical data for August 20, Vienna typically experiences temperatures between 16.8°C and 26.2°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (22% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Vienna
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
26.2°C
Daytime Peak
Average Low
16.8°C
Nighttime Low
Feels Like
27°C
☀️ Feels accurate
Rain Chance
22%
Avg 1.4mm if it rains
Cloud Cover
50%
Overcast
Pressure
1015.8 hPa
Medium volatility
Vienna Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 94% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
04:00 - 10:00
16:00 - 19:00
Type I-II
🔴 20 min to burn
Type III-IV
🟡 30 min to burn
Type V-VI
🟢 50 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 Austria
Flight Traffic
High
100/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~787
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Vienna
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
04:56
☀️ Noon
11:59
🌇 Sunset
19:02
⏱️ Daylight
14h 5m
Wind Speed
15.5 km/h
Gentle breeze
Sunshine
10.2 hrs
Direct Sun (Cloud-free)
Humidity
67%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Vienna
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Vienna
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🔴 Very 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, Vienna on August 20 averages 26.2°C with a 22% precipitation probability. Wedding/Outdoor Event Score: 98/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Vienna 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 20) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Vienna Worth Visiting on August 20?
Planning a trip to Vienna on August 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 26.2°C with a 22% historical precipitation risk.
✈️ Travel Logistics: Approximately 787 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 6 vaccinations are recommended for Austria, including COVID-19.
📊 Historical Extremes: The hottest August 20 recorded in the last 30 years saw temperatures hit 33.2°C in 2023, while the coldest dropped to 15.1°C in 2021.