Planning a trip to Cambodia’s vibrant capital? Timing your visit to Phnom Penh can make all the difference between a comfortable, memorable experience and one hampered by extreme heat or monsoon rains. This comprehensive 2025 weather and travel guide will help you choose the perfect time to explore the Kingdom of Wonder’s bustling metropolis.
Quick Answer: When to Visit Phnom Penh
The best time to visit Phnom Penh is from November to March during the cool, dry season. December and January offer the most comfortable conditions with pleasant temperatures, minimal rainfall, and abundant sunshine – perfect for exploring the city’s rich cultural heritage, vibrant markets, and stunning riverside attractions.
Understanding Phnom Penh’s Climate
Phnom Penh experiences a tropical monsoon climate with three distinct seasons that shape the city’s rhythm and your travel experience:
Dry Season (November – April)
The dry season represents Phnom Penh’s peak tourist period, and for good reason. Temperatures range from 24°C in the cooler months to 35°C, with the best weather arriving between December and March when average temperatures stay between 25°C and 28°C. This season offers:
- November-February: Cool and comfortable with minimal humidity
- March-April: Hot and dry with temperatures climbing toward 35°C
- Minimal rainfall: Perfect for outdoor activities and sightseeing
- Clear skies: Ideal conditions for photography and temple visits
Wet Season (May – October)
The wet season runs from May until September, with the heaviest rainfall generally in August & September. While many travelers avoid this period, Cambodia’s Green Season offers unique advantages:
- Lush landscapes: The city transforms into a verdant paradise
- Fewer crowds: Enjoy popular attractions with minimal tourist congestion
- Lower prices: Significant savings on accommodations and tours
- Cultural richness: Experience authentic local life during monsoon season
Hot Season (March – May)
The transition between dry and wet seasons brings intense heat. During April and May temperatures reach an average of 33°C. While challenging, this period offers budget-conscious travelers excellent deals.
Month-by-Month Weather Breakdown
December – January (Peak Season)
Temperature: 22-30°C (72-86°F) Rainfall: Minimal Humidity: Low to moderate Why visit: Maximum daytime temperature = 22 – 30°C with daily hours of sunshine = 10 hours or more. Perfect weather for exploring Phnom Penh’s outdoor attractions, including the Royal Palace, Silver Pagoda, and Choeung Ek Genocidal Center.
February – March (Excellent Conditions)
Temperature: 24-32°C (75-90°F) Rainfall: Very light Humidity: Moderate Why visit: Ideal for river cruises along the Mekong and outdoor dining at the city’s renowned restaurant scene.
April – May (Hot Season)
Temperature: 28-35°C (82-95°F) Rainfall: Occasional afternoon showers Humidity: High Why visit: Budget-friendly period with fewer tourists. Perfect for air-conditioned activities like museum visits and shopping at Central Market or Russian Market.
June – August (Early Wet Season)
Temperature: 26-32°C (79-90°F) Rainfall: Regular afternoon downpours Humidity: Very high Why visit: Experience the city’s transformation during monsoon season. Ideal for cultural immersion and enjoying Phnom Penh’s vibrant café culture.
September – November (Late Wet to Dry Transition)
Temperature: 25-31°C (77-88°F) Rainfall: Decreasing through the period Humidity: High to moderate Why visit: The best travel season is Nov to Jan. November marks the beginning of optimal conditions.
What to Pack for Each Season
Dry Season Essentials
- Lightweight, breathable clothing in natural fabrics
- Sun hat and high-SPF sunscreen
- Comfortable walking shoes
- Light jacket for air-conditioned venues
- Reusable water bottle
Wet Season Must-Haves
- Quick-dry clothing and rain gear
- Waterproof phone case and camera protection
- Comfortable sandals that dry quickly
- Umbrella for sudden downpours
- Moisture-wicking undergarments
Seasonal Events and Festivals
Cool Season Celebrations
- Water Festival (November): Cambodia’s most spectacular celebration along Phnom Penh’s riverfront
- Christmas and New Year: Western-style celebrations blend with local traditions
- Chinese New Year (January/February): Vibrant celebrations in the city’s Chinese quarters
Green Season Cultural Events
- Pchum Ben (September/October): Honor ancestors during this important Buddhist festival
- Royal Ploughing Ceremony (May): Traditional agricultural ceremony marking the start of growing season
Budget Considerations by Season
High Season (December – March)
- Accommodation: Expect premium rates, especially during December-January
- Tours: Peak pricing but maximum availability
- Flights: Highest airfare rates to Cambodia
Shoulder Season (April, November)
- Accommodation: Moderate rates with good availability
- Tours: Standard pricing with less crowding
- Flights: Reasonable rates with decent schedule options
Low Season (May – October)
- Accommodation: Significant discounts of 30-50%
- Tours: Budget-friendly options with personalized attention
- Flights: Lowest rates, though some routes may have reduced frequency
Health and Safety Considerations
Dry Season Health Tips
- Dehydration risk: High temperatures require constant hydration
- Sun exposure: Strong UV rays demand protective measures
- Air quality: Dust and pollution can affect sensitive individuals
Wet Season Precautions
- Waterborne illnesses: Increased risk during flood periods
- Mosquito-borne diseases: Higher dengue and malaria risk
- Road conditions: Flooding can affect transportation
Making the Most of Your Visit
Dry Season Activities
Take advantage of perfect weather conditions to explore Phnom Penh’s outdoor attractions:
- Walking tours through the historic French Quarter
- Sunset river cruises along the Mekong and Tonlé Sap rivers
- Day trips to nearby attractions like Oudong or silk-weaving villages
- Exploring the bustling Riverside area and night markets
Wet Season Experiences
Embrace Cambodia’s Green Season for unique cultural immersion:
- Cooking classes featuring seasonal ingredients
- Traditional massage and wellness treatments
- Museum visits including the National Museum and Tuol Sleng Genocide Museum
- Shopping in covered markets and modern malls
Expert Recommendations
For first-time visitors: Visit during December-February for the most comfortable introduction to Phnom Penh’s charms. The pleasant weather allows you to fully appreciate the city’s outdoor attractions without heat or rain limitations.
For budget travelers: Consider the wet season (June-September) when accommodation costs drop significantly, and you’ll experience a different side of Cambodia’s capital with lush, green surroundings and authentic local atmosphere.
For cultural enthusiasts: Plan around major festivals like Water Festival (November) or Pchum Ben (September) to witness Cambodia’s rich traditions firsthand.
For photography lovers: The dry season offers clear skies and golden light perfect for capturing Phnom Penh’s architectural gems, while the wet season provides dramatic storm clouds and vibrant green landscapes.
Final Thoughts
Phnom Penh rewards visitors year-round, each season offering distinct advantages for different types of travelers. The best time to visit Cambodia is generally from November to March in the dry season when the weather keeps mild and cool, and no frequent rain disrupts your travel itinerary.
Whether you choose the comfortable dry season or embrace the authentic experience of Cambodia’s Green Season, Phnom Penh’s warm hospitality, rich history, and vibrant culture ensure an unforgettable journey. The key is matching your travel priorities – whether comfort, budget, cultural immersion, or photography – with the season that best supports your goals.
Plan your 2025 Phnom Penh adventure with confidence, knowing that each season offers its own unique window into the Kingdom of Wonder’s captivating capital city.
Ready to explore Phnom Penh? For more insider tips, local insights, and comprehensive travel guides, visit Phnom Penh Now – your ultimate resource for discovering the best that Cambodia’s capital has to offer.