September 12 is generally a great time to visit Vienna. While there is a slight chance of rain (27%), showers are usually brief. Expect comfortable 22°C weather. As it's peak season for Vienna, we recommend booking your stay well in advance to secure the best rates.
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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 September 12
"Mild & Comfortable. Expect average highs of 22.2°C. 27% chance of rain."
What to Wear in Vienna in September
Based on historical data for September 12, Vienna typically experiences temperatures between 13.3°C and 22.2°C. We recommend packing light jacket, long pants to stay comfortable. With a 27% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Vienna
Smart Suitcase
- Light Jacket
- Long Pants
Average High
22.2°C
Daytime Peak
Average Low
13.3°C
Nighttime Low
Feels Like
22.5°C
☀️ Feels accurate
Rain Chance
27%
Avg 1.8mm if it rains
Cloud Cover
55%
Overcast
Pressure
1016.1 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 77% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 32 min to burn
Type III-IV
🟡 48 min to burn
Type V-VI
🟢 80 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
17.1°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
95/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~746
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Vienna
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:28
☀️ Noon
11:52
🌇 Sunset
18:16
⏱️ Daylight
12h 48m
Wind Speed
16.6 km/h
Gentle breeze
Sunshine
8.9 hrs
Direct Sun (Cloud-free)
Humidity
73%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Vienna
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
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Travel Health & Safety in Vienna
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
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, Vienna on September 12 averages 22.2°C with a 27% precipitation probability. Wedding/Outdoor Event Score: 96/100."
— 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
September 19
20.1°C • 16% rain
Score
99
September 18
20°C • 19% rain
Score
98
September 5
23.1°C • 21% rain
Score
97
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 12) in other destinations
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📍 Is Vienna Worth Visiting on September 12?
Planning a trip to Vienna on September 12? 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 22.2°C with a 27% historical precipitation risk.
✈️ Travel Logistics: Approximately 746 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 September 12 recorded in the last 30 years saw temperatures hit 30°C in 2023, while the coldest dropped to 9.2°C in 2024.