December 15 is statistically one of the best days of the year in Vientiane. With minimal rain risk (2%) and pleasant highs of 27°C, it's ideal for outdoor adventures. Vientiane is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Vientiane
Currency
LAK
₭ Lao kip
Language
Lao
Driving
Right side
Connect
Most hotels, restaurants, cafes, bars et...
Safety
High Safety
GPI: 1.809
Vientiane Weather Forecast for December 15
"Warm & Sunny. Expect average highs of 27.3°C. 2% chance of rain."
What to Wear in Vientiane in December
Based on historical data for December 15, Vientiane typically experiences temperatures between 18°C and 27.3°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (2% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Vientiane
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
27.3°C
Daytime Peak
Average Low
18°C
Nighttime Low
Feels Like
28.9°C
🔥 Minor difference
Rain Chance
2%
Avg 0mm if it rains
Cloud Cover
36%
Overcast
Pressure
1015.1 hPa
Low volatility
Vientiane Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 100% 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
20.1°C
Humid/Sticky
Heat Index
28.9°C
Feels hotter
🙂 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Laos
Flight Traffic
High
100/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~54
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Vientiane
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:33
☀️ Noon
12:05
🌇 Sunset
17:37
⏱️ Daylight
11h 3m
Wind Speed
10.8 km/h
Light breeze
Sunshine
9.3 hrs
Direct Sun (Cloud-free)
Humidity
65%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Vientiane
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Vientiane
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
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
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Vientiane on December 15 averages 27.3°C with a 2% precipitation probability. Wedding/Outdoor Event Score: 100/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Vientiane Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (December 15) in other destinations
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📍 Is Vientiane Worth Visiting on December 15?
Planning a trip to Vientiane on December 15? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 27.3°C with a 2% historical precipitation risk.
✈️ Travel Logistics: Approximately 54 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 10 vaccinations are recommended for Laos, including COVID-19.
📊 Historical Extremes: The hottest December 15 recorded in the last 30 years saw temperatures hit 30.6°C in 2023, while the coldest dropped to 14.2°C in 2022.