November 20 is generally a great time to visit Siena. While there is a slight chance of rain (38%), showers are usually brief. Expect comfortable 13°C weather. It's a lively time to explore Siena, with most attractions operating at full capacity.
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Essential Travel Info for Siena
Currency
EUR
€ Euro
Language
Italian
+1 more
Driving
Right side
Safety
High Safety
GPI: 1.643
Siena Weather Forecast for November 20
"Mild & Comfortable. Expect average highs of 12.5°C. 38% chance of rain."
What to Wear in Siena in November
Based on historical data for November 20, Siena typically experiences temperatures between 4.7°C and 12.5°C. We recommend packing heavy coat, scarf, gloves along with other layers to stay comfortable. With a 38% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Siena
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
- Umbrella
Average High
12.5°C
Daytime Peak
Average Low
4.7°C
Nighttime Low
Feels Like
11.9°C
🌤️ Feels accurate
Rain Chance
38%
Avg 2.9mm if it rains
Cloud Cover
65%
Overcast
Pressure
1014.5 hPa
High volatility
Siena Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 90% 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
🔴 267 min to burn
Type III-IV
🟡 401 min to burn
Type V-VI
🟢 668 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
9.9°C
Dry air
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Italy
Flight Traffic
Busy
63/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~40
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Siena
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:15
☀️ Noon
12:01
🌇 Sunset
16:48
⏱️ Daylight
9h 32m
Wind Speed
12.8 km/h
Gentle breeze
Sunshine
5.8 hrs
Direct Sun (Cloud-free)
Humidity
84%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Siena
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Siena
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟢 Moderate
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Weather unlikely to affect joint pain.
Fish are active due to pressure changes.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Moderate seismic activity. Occasional tremors possible.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Siena on November 20 averages 12.5°C with a 38% precipitation probability. Wedding/Outdoor Event Score: 73/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Siena Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
November 13
14.6°C • 26% rain
Score
88
November 14
14.4°C • 27% rain
Score
88
November 15
14.4°C • 28% rain
Score
88
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (November 20) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Siena Worth Visiting on November 20?
Planning a trip to Siena on November 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 12.5°C with a 38% historical precipitation risk.
✈️ Travel Logistics: Approximately 40 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for Italy, including COVID-19.
📊 Historical Extremes: The hottest November 20 recorded in the last 30 years saw temperatures hit 16.2°C in 2023, while the coldest dropped to 1.3°C in 2017.