January 31 is statistically one of the best days of the year in Siem Reap. With minimal rain risk (1%) and pleasant highs of 32°C, it's ideal for outdoor adventures.
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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 January 31
"Warm & Sunny. Expect average highs of 31.6°C. 1% chance of rain."
What to Wear in Siem Reap in January
Based on historical data for January 31, Siem Reap typically experiences temperatures between 21.8°C and 31.6°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (1% 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
31.6°C
Daytime Peak
Average Low
21.8°C
Nighttime Low
Feels Like
36.4°C
🔥 Feels warmer
Rain Chance
1%
Avg 0.1mm if it rains
Cloud Cover
41%
Overcast
Pressure
1012.2 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 93% 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
🔴 133 min to burn
Type III-IV
🟡 200 min to burn
Type V-VI
🟢 333 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
23.1°C
Humid/Sticky
Heat Index
36.4°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 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
06:32
☀️ Noon
12:19
🌇 Sunset
18:05
⏱️ Daylight
11h 32m
Wind Speed
13.7 km/h
Gentle breeze
Sunshine
10.4 hrs
Direct Sun (Cloud-free)
Humidity
61%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Siem Reap
Smart Flight Estimator
Airport-to-Airport Logistics
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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.
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, Siem Reap on January 31 averages 31.6°C with a 1% precipitation probability. Wedding/Outdoor Event Score: 98/100."
— 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
February 3
32.1°C • 5% rain
Score
100
February 4
32°C • 5% rain
Score
100
February 6
32.1°C • 3% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (January 31) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Siem Reap Worth Visiting on January 31?
Planning a trip to Siem Reap on January 31? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 31.6°C with a 1% historical precipitation risk.
💉 Health Advisory: 10 vaccinations are recommended for Cambodia, including COVID-19.
📊 Historical Extremes: The hottest January 31 recorded in the last 30 years saw temperatures hit 32.5°C in 2016, while the coldest dropped to 17.1°C in 2023.