What is the weather like in Phnom Penh throughout the year?

Phnom Penh experiences varying weather throughout the year. The warmest month is April with average highs of 35°C. The coolest month is December.

What is the weather like in Phnom Penh in December?

Phnom Penh in December scores 65/100 based on 30 years of climate data. Solid choice for most travelers.

Who should visit Phnom Penh in December?

December in Phnom Penh is ideal for: Budget travelers, Honeymoon couples, Business travelers.

Best Time to Visit Phnom Penh | 30-Year Weather Analysis

Why December is the Best Time to Visit Phnom Penh

Is December a Good Time to Visit Phnom Penh?

👍Solid choice for most travelers(65/100)

Short Answer

With 36°C apparent temperature (31°C actual, 70% humidity), December in Phnom Penh demands respect. Indoor attractions and water activities offer welcome relief.

Decision Factors

Vaccinations required

Yellow Fever

Feels significantly hotter than 30.5°C

Heat index: 36°C due to 70% humidity

Off-peak season - fewer crowds

Only 29% of peak - better deals and quiet crowds

Excellent dry conditions

Only 11% rain probability - ideal for outdoor activities

Health precautions needed

Be aware of: Leptospirosis, Melioidosis, Schistosomiasis

Plenty of sunshine

9.5h of sunshine daily

Good For

💰
Budget travelers
Off-peak pricing with acceptable weather conditions
💑
Honeymoon couples
Wedding score 97/100 with romantic weather conditions
💼
Business travelers
Climate-controlled meetings unaffected by weather

Who Should Avoid

👴
Elderly travelers
Heat index of 36°C poses health risks
🌡️
Heat-sensitive visitors
36°C feels-like temperature creates discomfort

Warmest

April

35°C avg

Coolest

December

30°C avg

Driest

January

4% rain

Wettest

September

81% rain

Planning Your Trip to Phnom Penh, Cambodia

Wondering when is the best time to visit Phnom Penh? Based on our analysis of 30 years of NASA satellite weather data, the ideal months to travel to Phnom Penh are December, January, February. During these months, you'll experience optimal temperatures around 30°C with only 11% chance of rain.

The Phnom Penh climate varies throughout the year. April is the hottest month with average highs of 35°C, while December is the coldest at 30°C. If you're planning outdoor activities or sightseeing in Phnom Penh, avoid September when rainfall peaks at 81% probability.

For the best Phnom Penh weather experience, we recommend visiting during January for the driest conditions or the shoulder months of December and January for a perfect balance of weather and fewer crowds.

Phnom Penh Weather by Month: Climate Guide

Click any month to explore detailed daily forecasts for Phnom Penh

🏆 85-100: Excellent👍 70-84: Great👌 55-69: Good🤔 40-54: Fair⚠️ 0-39: Challenging

When to Visit Phnom Penh: Travel Style Guide

Personalized Phnom Penh travel recommendations based on 30-year weather data

Beach Lovers

Warmest months with comfortable temperatures for outdoor activities

AprilMarchFebruary

Budget Travelers

Shoulder season with good weather and lower prices

April

Avoiding Crowds

Fewer tourists with acceptable weather conditions

AprilNovember

Honeymoon

Perfect conditions for a romantic getaway

JanuaryFebruaryMarch

Phnom Penh Weather FAQ: Your Questions Answered

What is the best time to visit Phnom Penh?

Based on 30 years of weather data, the best months to visit Phnom Penh are December, January, February. These months offer the optimal combination of pleasant temperatures (30°C avg) and low rainfall (11% chance).

When is the hottest time of year in Phnom Penh?

April is historically the warmest month in Phnom Penh with average highs of 35°C. If you prefer cooler weather, consider visiting in December when temperatures average around 30°C.

When is the rainy season in Phnom Penh?

September typically sees the most rainfall in Phnom Penh with a 81% chance of rain. For the driest conditions, plan your visit in January when rain probability drops to just 4%.

How accurate is the Phnom Penh weather forecast?

Our Phnom Penh climate analysis is based on 30 years of NASA POWER satellite observations (1995-2024), providing highly accurate historical averages. While weather can vary year to year, these long-term patterns are excellent indicators for planning your trip to Phnom Penh.

What should I pack for Phnom Penh?

Packing depends on when you visit. In April (warmest month), pack light summer clothes for 35°C weather. In December (coolest month), bring layers for 30°C temperatures. During September, pack rain gear as there's a 81% chance of rain.

Is Phnom Penh good for a destination wedding?

Yes! The best months for an outdoor wedding in Phnom Penh are January (only 4% rain chance) and December for optimal weather conditions. Avoid September when rain probability peaks at 81%.