Cambodia and Vietnam are two of the most beautiful countries in Southeast Asia. Both have fascinating cultures, ancient histories, charming landscapes, and stunning natural beauty.
Cambodia and Vietnam also lie side by side and share several similarities in their weather patterns, so it’s a good idea to visit both countries at the same time.
Before planning a trip to any country, one of the things you always need to consider is the best time to visit.
In this article, we take a close look at the best time to visit Cambodia and Vietnam and some factors to consider when planning your holiday.
Weather Overview in Cambodia and Vietnam
When deciding the best time to visit Cambodia and Vietnam, there are several factors to consider, with the weather being the most significant.
Here are some insights into the weather patterns in both countries:
Cambodia
Cambodia has a simple weather system with two major seasons: the dry and wet season.
The dry season in Cambodia starts in October and ends in April or early May, with an average temperature of 70 °F (21 °C) to 79 °F (26 °C). The coolest months are November to January, with dry weather and low humidity.
The wet season is from May to early October, with temperatures ranging from 77 °F to 95 °F (25 °C to 35 °C). During this period, the southwest monsoon brings up to 75% of the annual rainfall in this country. In May, June, and July, rainfall comes in short, infrequent downpours, but the rain becomes heavier towards late July to September. Humidity levels can reach over 80%.
Vietnam
Vietnam generally experiences high temperatures and high humidity all through the year. The climate in Vietnam can be divided by regions:
Northern Vietnam
The climate in North Vietnam, in cities like Hanoi and Ha Long, is characterized as a tropical monsoon with four distinct seasons: spring, summer, autumn, and winter. Summer often runs from May to September, with hot temperatures and the highest rainfall. Dry winter starts from November to February. In far North areas like Sapa, Ha Giang, and Ba Be, it sometimes gets very cold in winter, especially in December and January, with the temperature sometimes dropping to 0oC.
The fall season is from late September to November with cooler temperatures and less humidity. Rainfall decreases significantly compared to the summer months. Spring falls in March and April, when the weather becomes warmer, and the humidity starts to increase.
- Spring (March to April): Average Temperatures: 17 °C to 23 °C (63 °F to 73 °F)
- Summer (May to September): Average Temperatures: 25 °C to 35 °C (77 °F to 95 °F)
- Autumn (September to November): Average Temperatures: 20 °C to 28 °C (68 °F to 82 °F)
- Winter (December to February): Average Temperatures: 10 °C to 20 °C (50 °F to 68 °F)
Central Vietnam
Areas in Central Vietnam, such as Hue, Danang, and Hoi An, have hot and dry weather between mid-January and August. The dry season can extend to late September in some areas like Nha Trang. The rainy season in Central Vietnam comes through from October to December; flooding and heavy storms may occur at this time.
- Dry Season (January to August): Temperatures: 25 °C to 35 °C (77 °F to 95 °F) in coastal areas.
- Rainy Season (September to December): Temperatures: 22 °C to 30 °C (72 °F to 86 °F) in coastal areas.
South Vietnam
South Vietnam’s weather, like that of Ho Chi Minh City, is similar to Cambodia’s. The dry season begins in November and lasts until April. The wet season starts in May with little rain and ends in early November, with the heaviest rainfall in June, July, and August.
- Dry Season (November to April): Average Temperatures: 25 °C to 35 °C (77 °F to 95 °F)
- Rainy Season (May to November): Average Temperatures: 24 °C to 33 °C (75 °F to 91 °F)
Best Time of the Year to Visit Cambodia and Vietnam
Whether you prefer to visit during the rainy season with fewer crowds or during the dry and high season with larger crowds, it all depends on your preferences and the things you want to explore.
November to April
The best time to visit Cambodia and Vietnam is during the dry season, which starts in November and ends in late April. These months have the best weather for your trip. There is less chance of rainfall, and the sky is clear, making it more convenient for you to travel and explore outdoor activities.
You should also keep in mind that the dry season is divided into two: the cool season from November to February and the hot season from March to April. The countries experience the least rainfall from March to April. This hot season is the best time for beach vacations and cruises in the Mekong River and Halong Bay (a UNESCO World Heritage Site). If you want to escape the heat, it’s best to come in November-February, when the weather is cooler.
May to October
This is the rainy season, often called the Green Season, due to the lush greenery surrounding the landscapes. Though there are heavy rains from May to October, the mornings are usually hot and humid, with plenty of sunshine, making it a good time for outdoor activities. The height of the rainy season is from June to early October, so you could visit in May or late October to experience less rainfall.
During the wet season, there are fewer tourists, making it an excellent time to visit popular tourist sites for a more peaceful and less crowded atmosphere. Despite the rainy season, you can still enjoy activities like Mekong River cruises and trips to Hanoi and Sapa. You should know that the rainy season doesn’t always mean constant rainfall or floods. The rainfall rarely lasts the entire day, so you still have opportunities for dry day trips.
Some places are also best visited during the rainy season, like the Hôi An, with its alleyways lit up with lanterns and the beautiful beaches of Da Nang.
Other Things To Consider When Visiting Vietnam and Cambodia
Besides the weather conditions, here are other things to consider before you pick a date for your trip:
Activities and Itinerary
There are upsides and downsides to traveling in each season, it all depends on what you are looking for in your trip
First, take a look at the activities on your itinerary. For instance, if your itinerary includes activities like hiking and biking, then this might be difficult during the rainy season. Also, the rainy season in Cambodia can make it difficult to explore the ancient temples in Angkor Wat.
Crowd Considerations
Another thing to keep in mind before deciding what is the best time to visit Cambodia and Vietnam is the crowds. Most tourists visit both countries during the dry season because it has the best weather which makes it easy to move around and enjoy attraction sites, unlike during the monsoon season when heavy rainfall can affect some of your adventures. But this also means there are larger crowds in the dry season, so popular destinations get super busy, and the prices tend to be higher.
If you want to avoid the crowds as much as possible, the peak season November to April may be a bad time to visit. Instead, consider going during the shoulder season when you can have a more peaceful vacation and lower costs. A good tip is to go just before the high season in May or late October when there is lighter rainfall and smaller crowds.
Accessibility
The rainy season between May and October sometimes results in typhoons and flooding. Road closures can make it difficult to get around, and your Halong Bay cruise might be postponed.
Cultural Festivities
You might also want to check out the local festivals in both countries before you finalize your travel plans—they can give you a unique glimpse into the local culture and make your trip even more memorable.
Festivals in Cambodia
The most popular festival in Cambodia is the Khmer New Year, which occurs between the 13th and 15th of April. It’s celebrated with lively festivals that include traditional dance performances, colorful parades, community gatherings, and fun stuff like games and water fights. If you want to experience the beauty of the festival, plan your trip for April (check the exact days, as it is based on the lunar cycle). However, you should know that some public monuments are closed during these three-day holidays.
Another festival in Cambodia is the Bon Om Touk, or water festival, which involves dragon boat racing all over the country, especially at Phnom Penh. This festival is often in late October or November to commemorate the end of the rainy season and the beginning of the dry season.
Festivals in Vietnam
In Vietnam, the two main festivities are Tet and Mid-Autumn Festival. The Vietnamese New Year or Tet festival often falls between the end of January and early February, depending on the lunar calendar. If you want to learn more about Vietnamese culture, you should plan your trip around the Tet holiday. The country comes alive to celebrate the traditional culture of Vietnam, sample local delicious food, and dance to live music. Be aware that many tourists come during this time, so the airports and hotels are often overbooked, and some guides don’t work.
The Mid-Autumn Festival, also called the Full Moon Festival, is a significant festival in Vietnam. It takes place on the full moon night (15th day) of the 8th month of the Chinese calendar when it is believed that the moon shines the brightest throughout the year. This usually falls around September or early October in the Gregorian calendar. The Mid-Autumn Festival celebrates harvest time with beautiful paper lanterns, lion dancing along the streets, and mooncakes.
Best Things to Do in Vietnam
Here are just a few of the top destinations to visit in Vietnam:
Start with Hanoi, the buzzing capital, where you can explore historic sites, vibrant street markets, and the symbol of the city, Hoan Kiem Lake.
Halong Bay is a must-see UNESCO World Heritage Site, famous for its amazing limestone formations and emerald waters.
Hoi An is another charming city with its well-preserved old buildings, colorful lanterns, and a cool blend of old and new culture.
The cultural and scenic wonders of Da Nang, like the Dragon Bridge and the iconic Marble Mountains, make it one of the best places to visit in Vietnam.
You will also love Sa Pa, with its stunning terraced rice fields, ethnic villages, and stunning Fansipan Mountain.
And of course, Ho Chi Minh City (Saigon), a bustling metropolis with vibrant markets, historical landmarks, and lively nightlife.
Best Things to Do in Cambodia
Here are just a few of the top destinations to visit in Vietnam:
For a taste of local culture in Cambodia, head to Siem Reap. It’s a lively city with bustling markets, great nightlife, and plenty to see and do.
Just outside Siem Reap is Angkor Wat, Cambodia’s top attraction. This epic temple complex is famous for its stunning architecture and intricate carvings—truly a must-see!
In Phnom Penh, the capital city, you’ll find interesting landmarks like the Royal Palace, Silver Pagoda, and the more somber Killing Fields and Tuol Sleng Genocide Museum.
If what you’re craving is a beach vacation, then head to Sihanoukville. This coastal city offers beautiful beaches, a chill vibe, and easy access to nearby islands like Koh Rong and Koh Rong Samloem.
CHECK OUT MY FULL CAMBODIA TRAVEL GUIDE
Final Thoughts
If you don’t mind the crowds, the best time to visit Cambodia and Vietnam is the dry season. Outside of the dry season, the rainy season is also a good time to visit, especially to avoid the crowds and save costs. Whether you plan your trip for the green season or the dry season, you’re sure to have loads of fun in these beautiful countries!
