November 20 is generally a great time to visit Siem Reap. While there is a slight chance of rain (24%), showers are usually brief. Expect comfortable 30°C weather.
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Essential Travel Info for Siem Reap
Currency
KHR
៛ Cambodian riel
Language
Khmer
Driving
Right side
Connect
Wifi is available in all the usual place...
Safety
High Safety
GPI: 1.882
Siem Reap Weather Forecast for November 20
"Warm & Sunny. Expect average highs of 30.1°C. 24% chance of rain."
What to Wear in Siem Reap in November
Based on historical data for November 20, Siem Reap typically experiences temperatures between 22.7°C and 30.1°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (24% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Siem Reap
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
30.1°C
Daytime Peak
Average Low
22.7°C
Nighttime Low
Feels Like
36.8°C
🔥 Heat index effect
Rain Chance
24%
Avg 1.5mm if it rains
Cloud Cover
62%
Overcast
Pressure
1011 hPa
Low volatility
Siem Reap Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 86% 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
🔴 200 min to burn
Type III-IV
🟡 300 min to burn
Type V-VI
🟢 500 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
25.4°C
Humid/Sticky
Heat Index
36.8°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 Cambodia
Flight Traffic
N/A
0/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
N/A
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Siem Reap
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:07
☀️ Noon
11:51
🌇 Sunset
17:35
⏱️ Daylight
11h 28m
Wind Speed
12.4 km/h
Gentle breeze
Sunshine
9.4 hrs
Direct Sun (Cloud-free)
Humidity
76%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Siem Reap
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 Siem Reap
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟢 Moderate
Price Level
💰💰 Moderate
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
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Siem Reap on November 20 averages 30.1°C with a 24% precipitation probability. Wedding/Outdoor Event Score: 92/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Siem Reap Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
November 25
30.3°C • 15% rain
Score
100
November 26
30.2°C • 14% rain
Score
100
November 27
30.2°C • 14% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (November 20) in other destinations
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📍 Is Siem Reap Worth Visiting on November 20?
Planning a trip to Siem Reap on November 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 30.1°C with a 24% historical precipitation risk.
💉 Health Advisory: 10 vaccinations are recommended for Cambodia, including COVID-19.
📊 Historical Extremes: The hottest November 20 recorded in the last 30 years saw temperatures hit 32°C in 2024, while the coldest dropped to 19.1°C in 2023.