Cambodia Weather: Best Time to Visit

Cambodia offers an incredible backpacking adventure, but understanding its climate is key to a fantastic trip. This tropical nation experiences distinct wet and dry seasons, and timing your visit can dramatically impact your experience, from exploring ancient temples to relaxing on pristine beaches. Knowing what to expect will help you pack right and make the most of your journey through this captivating country.

Cambodia’s Seasons (Quick Version)

Cambodia's climate is characterised by two main seasons: the dry season and the wet season, with a brief hot transition period. Each season offers a unique perspective on the country, influencing everything from temple visits to beach relaxation.

• Cool Season: This is the most popular time to visit, with pleasant temperatures, low humidity, and clear skies perfect for exploring.
• Hot Season: Temperatures soar during these months, making sightseeing more challenging, though the beaches offer some respite.
• Rainy Season: The monsoon brings lush green landscapes and fewer crowds, with daily downpours often followed by sunshine.

Month-By-Month: Cambodia Weather

To help you pinpoint the ideal time for your Cambodian backpacking trip, here's a detailed month-by-month breakdown of what you can expect across the country.

Cambodia Weather in January

Excellent, dry, around 31°C

January is a prime month for visiting Cambodia. Expect dry, sunny days with daytime highs around 31°C and fresh mornings near 21°C. Humidity is low, and skies are typically clear, making it ideal for exploring the temples of Angkor Wat near Siem Reap or the bustling streets of Phnom Penh. Beach destinations like Sihanoukville and the islands of Koh Rong also enjoy calm seas and abundant sunshine.

The southern coast, including Kep and Kampot, experiences similar dry and pleasant conditions, perfect for island hopping or relaxing by the sea. Expect higher tourist numbers and prices across all major destinations this month.

Cambodia Weather in February

Excellent, dry, around 33°C

February continues the fantastic dry weather, with temperatures beginning to climb, with daytime highs around 33°C. Humidity remains low, ensuring comfortable travel conditions for discovering ancient ruins or trekking through national parks. It's still an excellent time for all activities, from sunrise at Angkor Wat to enjoying the vibrant nightlife in Phnom Penh or relaxing on the pristine beaches.

While generally dry nationwide, the northeast regions like Mondulkiri might see slightly higher temperatures. Sea conditions around the islands of Koh Rong remain superb for snorkelling and diving, with clear visibility.

Cambodia Weather in March

Hot, dry, around 34°C

March marks the start of the hot season, with daytime highs rising to around 34°C, often feeling hotter. While still largely dry, humidity begins to increase. Early mornings are best for sightseeing at Angkor Wat before the intense midday heat. Destinations like Phnom Penh can feel very warm, so plan activities around the cooler parts of the day. Hydration is key.

Coastal areas such as Sihanoukville and Kep offer a slight reprieve from the heat with sea breezes, but the water itself will be very warm. Tourist numbers start to decrease slightly as the heat intensifies.

Cambodia Weather in April

Very hot, humid, around 35°C

April is typically the hottest month in Cambodia, with average temperatures soaring to 35°C and high humidity. Occasional pre-monsoon showers might bring temporary relief, but generally, expect intense heat. This is when the Khmer New Year (Chaul Chnam Thmey) takes place, bringing lively celebrations but also many closures. Exploring Angkor Wat requires very early starts to avoid the midday sun.

The capital, Phnom Penh, can feel particularly stifling, making indoor activities or riverside relaxation more appealing. Beaches like those on Koh Rong are popular for cooling off, and the sea is usually calm until the monsoon winds pick up in May.

Cambodia Weather in May

Humid, rainy, around 34°C

May sees the official start of the rainy season, bringing increased humidity and more frequent, though often short, afternoon downpours. Daytime highs hover around 34°C. While it's wet, the rains contribute to lush, green landscapes, particularly around Angkor Wat, which looks stunning. Tourist numbers begin to decline, offering a more tranquil experience at popular sites.

The Cardamom Mountains in the southwest start to become very green and vibrant, though trekking routes can get muddy. Coastal areas like Kampot and Kep experience more rain, but the sea remains warm for swimming between showers.

Cambodia Weather in June

Wet, humid, around 33°C

June is firmly in the rainy season, with consistent daily showers, usually in the afternoon, and high humidity. Daytime highs are around 33°C. The countryside is incredibly verdant, making for beautiful scenery, especially around Tonlé Sap Lake and the rice paddies near Siem Reap. Crowds are significantly smaller, allowing for a more intimate exploration of sites like Angkor Thom.

Boat travel to the islands might be less reliable due to choppier seas, and some smaller guesthouses on the islands may close for the low season. Water levels in rivers and lakes begin to rise, enhancing some boat tours.

Cambodia Weather in July

Rainy, humid, around 32°C

July brings continued heavy rainfall and high humidity, with daytime highs around 32°C. While daily downpours are common, they are often interspersed with periods of sunshine. This creates dramatic skies and keeps the landscapes exceptionally green. It's a great time for budget travellers as prices for accommodation and tours are generally lower in places like Siem Reap and Phnom Penh.

The northeastern provinces, such as Ratanakiri, become challenging to access due to muddy roads, though the waterfalls are at their most impressive. Coastal towns like Sihanoukville experience significant rainfall, impacting beach activities.

Cambodia Weather in August

Very wet, humid, around 32°C

August is one of the wettest months, with frequent and sometimes prolonged rainfall across the country. Humidity remains very high, and daytime highs are around 32°C. Despite the rain, the vibrant green scenery is breathtaking, and the moats around Angkor Wat are full, creating stunning reflections. Fewer tourists mean a more serene experience at major attractions.

Travel to remote areas can be difficult due to flooded roads, particularly in rural parts of the country. Ferry services to some islands might be limited or suspended depending on sea conditions, so check in advance if planning a coastal trip.

Cambodia Weather in September

Wettest, humid, around 31°C

September is typically the peak of the rainy season, experiencing the highest rainfall and persistent humidity, with daytime highs around 31°C. Expect daily heavy downpours that can last for several hours. This is the quietest month for tourism, offering the lowest prices and the most authentic local experiences. The full moats and lush jungle around Angkor are spectacular despite the wetness.

The Mekong River is at its highest levels, making river cruises between Phnom Penh and Chau Doc (Vietnam) a unique experience. Coastal towns like Kep and Kampot will be very wet, potentially limiting outdoor exploration and island excursions.

Cambodia Weather in October

Rain easing, around 31°C

October sees the rains begin to subside, though heavy showers can still occur, especially early in the month. Humidity remains high, with daytime highs around 31°C. The landscapes are still wonderfully green and fresh. Tourist numbers start to pick up towards the end of the month as the weather improves, particularly in popular spots like Siem Reap and Phnom Penh.

Roads that were muddy during the peak monsoon begin to dry out, making travel to more remote areas like the northeast easier. Sea conditions for island hopping around Koh Rong improve significantly as the month progresses.

Cambodia Weather in November

Excellent, dry, around 31°C

November marks the glorious return of the dry season, making it one of the best months to visit. Daytime highs are a pleasant 31°C, humidity drops, and skies are generally clear. The countryside is still lush from the monsoon, and conditions are perfect for exploring Angkor Wat, cycling around Siem Reap, or enjoying the vibrant energy of Phnom Penh. Tourist season kicks into high gear.

The coastal areas, including Sihanoukville and the islands, boast calm seas and abundant sunshine, ideal for beach relaxation and water sports. Expect increasing crowds and higher prices for accommodation and flights.

Cambodia Weather in December

Excellent, dry, around 30°C

December offers nearly perfect weather conditions for backpacking across Cambodia. With daytime highs around 30°C, low humidity, and consistent sunshine, it's ideal for all activities. Explore the ancient wonders of Angkor, delve into the history of Phnom Penh, or unwind on the beautiful southern beaches and islands. This is peak tourist season, so expect bustling sites and higher costs.

The cooler temperatures and dry conditions extend across all regions, including the more remote areas of the northeast, which become more accessible for trekking. Booking accommodation and transport well in advance is highly recommended due to high demand.

Regional Weather Differences

While Cambodia's climate is largely consistent across the country, there are some subtle regional variations that can influence your travel plans, especially concerning rainfall and coastal conditions.

• Central Plains (Siem Reap, Phnom Penh): This region experiences the classic dry and wet season cycle, with the dry season (Nov-Feb) being ideal for temple exploration and city sightseeing.
• Southern Coast & Islands (Sihanoukville, Koh Rong): Coastal areas receive far more rain in the wet season than the plains (Sihanoukville gets more than twice Phnom Penh's yearly total), but the dry season offers calm seas perfect for island hopping and beach activities.
• Northeastern Highlands (Ratanakiri, Mondulkiri): These remote, elevated regions can be cooler but also experience heavier, more prolonged rainfall during the wet season, making travel challenging.

Best Time to Visit Cambodia

For most backpackers, the best time to visit Cambodia is during the cool, dry season, from November to February. During these months, temperatures are pleasant, humidity is low, and skies are clear, providing ideal conditions for exploring ancient temples, enjoying city life, and relaxing on the beaches. If you don't mind the heat, March and April offer drier conditions before the monsoon, while the rainy season (June-October) brings lush landscapes and fewer crowds, making it a great option for budget travellers who don't mind occasional downpours.

Which Trip, and When?

Backpacking Cambodia (10 days) starts in Phnom Penh, heads south to Kampot for kayaking and a pepper plantation, spends three days on Koh Rong, then takes the night bus to Siem Reap for the floating villages and Angkor Wat. November to February is the time for it: the island days need calm seas, and Angkor is far more comfortable before the March to May heat.

The same route closes Vietnam & Cambodia (21 days) and Backpacking Asia (38 days), which reach Cambodia after a Vietnam leg.

• See all our Cambodia trips.