May 21 sees frequent showers in Luang Prabang. Historical data shows a 45% chance of rain, so pack accordingly. Temperatures average 33°C. You'll find plenty of company in Luang Prabang this month as tourism activity remains quite robust.
View the full calendar
Essential Travel Info for Luang Prabang
Currency
LAK
₭ Lao kip
Language
Lao
Driving
Right side
Safety
High Safety
GPI: 1.809
Luang Prabang Weather Forecast for May 21
"Warm & Sunny. Expect average highs of 32.8°C. 45% chance of rain."
What to Wear in Luang Prabang in May
Based on historical data for May 21, Luang Prabang typically experiences temperatures between 24°C and 32.8°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 45% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Luang Prabang
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
32.8°C
Daytime Peak
Average Low
24°C
Nighttime Low
Feels Like
46.4°C
🔥 Heat index effect
Rain Chance
45%
Avg 3.6mm if it rains
Cloud Cover
77%
Light drizzle
Pressure
1006.6 hPa
Low volatility
Luang Prabang Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ This date historically delivers consistent weather 78% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 18:00
Type I-II
🔴 16 min to burn
Type III-IV
🟡 24 min to burn
Type V-VI
🟢 40 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
28.4°C
Humid/Sticky
Heat Index
46.4°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Laos
Flight Traffic
Busy
64/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~7
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Luang Prabang
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:35
☀️ Noon
12:09
🌇 Sunset
18:43
⏱️ Daylight
13h 8m
Wind Speed
9.6 km/h
Light breeze
Sunshine
9.7 hrs
Direct Sun (Cloud-free)
Humidity
78%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Luang Prabang
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 Luang Prabang
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Mild discomfort possible for arthritic conditions.
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, Luang Prabang on May 21 averages 32.8°C with a 45% precipitation probability. Wedding/Outdoor Event Score: 80/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Luang Prabang Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (May 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Luang Prabang Worth Visiting on May 21?
Planning a trip to Luang Prabang on May 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 32.8°C with a 45% historical precipitation risk.
✈️ Travel Logistics: Approximately 7 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 May 21 recorded in the last 30 years saw temperatures hit 38°C in 2019, while the coldest dropped to 23.3°C in 2022.