December 8 is generally a great time to visit Siena. While there is a slight chance of rain (31%), showers are usually brief. Expect comfortable 10°C weather. It's a lively time to explore Siena, with most attractions operating at full capacity. Note: December 8 is Immaculate Conception in Siena, so expect special events, closures, and festive atmosphere.
View the full calendar
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 December 8
"Mild & Comfortable. Expect average highs of 10.4°C. 31% chance of rain."
What to Wear in Siena in December
Based on historical data for December 8, Siena typically experiences temperatures between 2.7°C and 10.4°C. We recommend packing heavy coat, scarf, gloves along with other layers to stay comfortable. With a 31% 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
10.4°C
Daytime Peak
Average Low
2.7°C
Nighttime Low
Feels Like
9.2°C
❄️ Minor difference
Rain Chance
31%
Avg 1.8mm if it rains
Cloud Cover
64%
Overcast
Pressure
1016.4 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 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
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
8°C
Dry air
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Holiday
Immaculate Conception
Flight Traffic
Busy
64/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~41
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Siena
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:35
☀️ Noon
12:07
🌇 Sunset
16:40
⏱️ Daylight
9h 4m
Wind Speed
13 km/h
Gentle breeze
Sunshine
5.6 hrs
Direct Sun (Cloud-free)
Humidity
85%
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
🟡 Busy
Price Level
💰💰💰 Expensive
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 December 8 averages 10.4°C with a 31% precipitation probability. Wedding/Outdoor Event Score: 65/100."
— 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
December 1
10.9°C • 27% rain
Score
69
December 5
10.8°C • 26% rain
Score
69
December 6
10.7°C • 26% rain
Score
69
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (December 8) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Siena Worth Visiting on December 8?
Planning a trip to Siena on December 8? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 10.4°C with a 31% historical precipitation risk.
🎉 Local Event: The date coincides with Immaculate Conception, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 41 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 December 8 recorded in the last 30 years saw temperatures hit 14.1°C in 2018, while the coldest dropped to -1.3°C in 2016.