April 15 is generally a great time to visit Siem Reap. While there is a slight chance of rain (37%), showers are usually brief. Expect comfortable 34°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 April 15
"Warm & Sunny. Expect average highs of 34°C. 37% chance of rain."
What to Wear in Siem Reap in April
Based on historical data for April 15, Siem Reap typically experiences temperatures between 25.7°C and 34°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 37% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Siem Reap
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
34°C
Daytime Peak
Average Low
25.7°C
Nighttime Low
Feels Like
47.8°C
🔥 Heat index effect
Rain Chance
37%
Avg 2.6mm if it rains
Cloud Cover
64%
Light drizzle
Pressure
1009 hPa
Low volatility
Siem Reap Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 18:00
Type I-II
🔴 17 min to burn
Type III-IV
🟡 26 min to burn
Type V-VI
🟢 43 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
28.2°C
Humid/Sticky
Heat Index
47.8°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
05:53
☀️ Noon
12:05
🌇 Sunset
18:18
⏱️ Daylight
12h 25m
Wind Speed
11.9 km/h
Light breeze
Sunshine
10.5 hrs
Direct Sun (Cloud-free)
Humidity
72%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Siem Reap
Smart Flight Estimator
Airport-to-Airport Logistics
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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
⛅ Good
Tourist Crowds
🟡 Busy
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 April 15 averages 34°C with a 37% precipitation probability. Wedding/Outdoor Event Score: 83/100."
— 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
April 18
34.1°C • 29% rain
Score
87
April 19
34.3°C • 26% rain
Score
87
April 20
34.6°C • 25% rain
Score
87
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (April 15) in other destinations
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📍 Is Siem Reap Worth Visiting on April 15?
Planning a trip to Siem Reap on April 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 34°C with a 37% historical precipitation risk.
💉 Health Advisory: 10 vaccinations are recommended for Cambodia, including COVID-19.
📊 Historical Extremes: The hottest April 15 recorded in the last 30 years saw temperatures hit 38.4°C in 2016, while the coldest dropped to 24.2°C in 2021.