Historical data suggests significant rain risk (77%) on May 27. If you seek sun, consider a different date. Bring rain gear! Phnom Penh is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Phnom Penh
Currency
KHR
៛ Cambodian riel
Language
Khmer
Driving
Right side
Connect
Cheap SIM cards from US$2 for GSM phones...
Safety
High Safety
GPI: 1.882
Phnom Penh Weather Forecast for May 27
"Rainy & Overcast. Expect average highs of 32.8°C. 77% chance of rain."
What to Wear in Phnom Penh in May
Based on historical data for May 27, Phnom Penh typically experiences temperatures between 25.8°C and 32.8°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 77% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Phnom Penh
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
32.8°C
Daytime Peak
Average Low
25.8°C
Nighttime Low
Feels Like
47.4°C
🔥 Heat index effect
Rain Chance
77%
Avg 5.4mm if it rains
Cloud Cover
87%
Moderate rain
Pressure
1007.8 hPa
Low volatility
Phnom Penh Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 96% 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
🔴 19 min to burn
Type III-IV
🟡 29 min to burn
Type V-VI
🟢 48 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
28.9°C
Humid/Sticky
Heat Index
47.4°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
High
81/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~48
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Phnom Penh
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:36
☀️ Noon
11:58
🌇 Sunset
18:20
⏱️ Daylight
12h 43m
Wind Speed
14.3 km/h
Gentle breeze
Sunshine
9.6 hrs
Direct Sun (Cloud-free)
Humidity
80%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Phnom Penh
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 Phnom Penh
Travel Comfort Index
Real-time tourism conditions
Weather Quality
🌧️ Variable
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 excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Phnom Penh on May 27 averages 32.8°C with a 77% precipitation probability. Wedding/Outdoor Event Score: 52/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Phnom Penh Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
June 2
32.7°C • 62% rain
Score
66
June 3
32.7°C • 62% rain
Score
66
June 1
32.7°C • 63% rain
Score
65
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (May 27) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Phnom Penh Worth Visiting on May 27?
Planning a trip to Phnom Penh on May 27? 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 77% historical precipitation risk.
✈️ Travel Logistics: Approximately 48 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 10 vaccinations are recommended for Cambodia, including COVID-19.
📊 Historical Extremes: The hottest May 27 recorded in the last 30 years saw temperatures hit 36.2°C in 2024, while the coldest dropped to 25.3°C in 2021.