December 15 is statistically one of the best days of the year in Las Vegas. With minimal rain risk (3%) and pleasant highs of 13°C, it's ideal for outdoor adventures. Las Vegas is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Las Vegas
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Connect
Essentially all hotels offer in-room Wi-...
Safety
Moderate Safety
GPI: 2.44
Las Vegas Weather Forecast for December 15
"Mild & Comfortable. Expect average highs of 13.3°C. 3% chance of rain."
What to Wear in Las Vegas in December
Based on historical data for December 15, Las Vegas typically experiences temperatures between 3.3°C and 13.3°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. Trends suggest it will stay mostly dry (3% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Las Vegas
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
Average High
13.3°C
Daytime Peak
Average Low
3.3°C
Nighttime Low
Feels Like
12.9°C
🌤️ Feels accurate
Rain Chance
3%
Avg 0.1mm if it rains
Cloud Cover
40%
Overcast
Pressure
1019.8 hPa
Medium volatility
Las Vegas 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
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
1.3°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 United States
Flight Traffic
High
85/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~623
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Las Vegas
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:45
☀️ Noon
11:37
🌇 Sunset
16:28
⏱️ Daylight
9h 42m
Wind Speed
10.3 km/h
Light breeze
Sunshine
8.2 hrs
Direct Sun (Cloud-free)
Humidity
44%
Comfortable
Travel Intelligence
Exclusive flight analytics & health data for Las Vegas
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Las Vegas
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
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 excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Las Vegas on December 15 averages 13.3°C with a 3% precipitation probability. Wedding/Outdoor Event Score: 88/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Las Vegas Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
December 8
14.8°C • 4% rain
Score
96
December 9
14.6°C • 5% rain
Score
95
December 10
14.3°C • 4% rain
Score
93
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (December 15) in other destinations
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📍 Is Las Vegas Worth Visiting on December 15?
Planning a trip to Las Vegas on December 15? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 13.3°C with a 3% historical precipitation risk.
✈️ Travel Logistics: Approximately 623 landing slots available daily during this period, indicating peak tourist activity.
📊 Historical Extremes: The hottest December 15 recorded in the last 30 years saw temperatures hit 19.9°C in 2025, while the coldest dropped to -1.1°C in 2022.