Vietnam in September – Weather & Best Places To Visit

Vietnam in September – a good time to visit or not? The weather begins to shift, bringing both pleasant surprises and challenges, depending on where you go. Should you plan your trip now, or is it better to wait? This guide will help you understand the weather, the best destinations, and what to expect when traveling to Vietnam in September.

Vietnam climate

Before diving into the weather and the best places to visit in September, it’s important to understand the basics of Vietnam’s climate. Because Vietnam stretches over 1,600 kilometers from north to south, it has different climate zones, meaning there is no single weather pattern that applies to the entire country. Instead, Vietnam’s climate is generally divided into three distinct regions: the north, center, and south, each with its own seasonal characteristics.

Climate North Vietnam

Northern Vietnam has a subtropical climate with four distinct seasons. The summers are hot and humid, while the winters can get surprisingly cold, especially in mountainous areas like Sapa. The region experiences a dry season from November to April and a rainy season from May to October, with the heaviest rainfall usually in late summer. The transition between these seasons brings unpredictable weather, making it important to check conditions before traveling.

Climate Central Vietnam

Central Vietnam lies in a tropical monsoon zone, with a different weather pattern compared to the north and south. This region has a dry season from around January to August, followed by a rainy season that starts in September and peaks in October and November. Unlike the north, it doesn’t have a clear winter season, but temperatures can drop slightly during the cooler months. The coastal areas, including Da Nang and Hoi An, are also affected by typhoons, which typically occur later in the year.

Climate South Vietnam

Southern Vietnam has a tropical climate with just two seasons: a dry season from November to April and a rainy season from May to October. Temperatures remain warm throughout the year, with little variation. The rainy season brings short but intense showers, often in the afternoon, but they rarely last long enough to disrupt travel plans. Unlike the central and northern regions, the south doesn’t experience significant temperature drops, making it consistently warm regardless of the time of year.

Vietnam weather in September

As mentioned in the climate section, Vietnam’s weather varies greatly depending on the region. September marks a transitional period across the country, with shifting rainfall patterns and temperature changes that can influence travel plans. To give you a clearer picture, we’ll break it down into three regions: the north, central, and south.

North Vietnam weather

September signals the gradual end of the rainy season in northern Vietnam. While there are still frequent showers, the amount of rainfall starts to decrease compared to the peak in July and August. Hanoi and other lowland areas see average temperatures ranging from 25-32°C (77-90°F), with high humidity making it feel warmer. In the mountains, such as Sapa, temperatures drop slightly to around 17-25°C (63-77°F), offering cooler conditions. Rain tends to come in short, heavy bursts rather than lasting all day, so there are still plenty of dry periods for sightseeing.

This is also the time when the landscape is at its most vibrant, especially in rural areas where the rice fields are lush green. However, occasional storms can still occur, particularly in coastal areas like Ha Long Bay. If you’re planning to visit northern Vietnam in September, it’s useful to check the forecast regularly. For a more detailed look at the weather, check out our guide to North Vietnam in September.

Central Vietnam weather

September marks the shift from the dry to the rainy season in central Vietnam. The first half of the month may still see relatively dry and warm conditions, but by mid to late September, rainfall increases significantly, particularly in cities like Hue, Da Nang, and Hoi An. Average temperatures remain high, ranging from 24-32°C (75-90°F), with high humidity making it feel even hotter. Rainfall can reach around 300-500 mm (12-20 inches), especially towards the end of the month, and some storms or typhoons may start forming in the region.

Despite the increase in rain, it doesn’t necessarily mean constant downpours. Rain often comes in heavy but short-lived showers, leaving gaps of dry weather in between. Beach destinations such as Da Nang and Nha Trang may still have sunny days, but the risk of sudden storms increases. If you want a more in-depth look at the weather, read our guide to Central Vietnam in September.

South Vietnam weather

In southern Vietnam, September is still part of the rainy season, but the intensity of rain starts to decrease compared to earlier months. Cities like Ho Chi Minh City and the Mekong Delta experience warm temperatures between 24-32°C (75-90°F), with high humidity making the heat feel more intense. Rainfall levels remain high, typically around 200-300 mm (8-12 inches) for the month, but showers are usually brief and concentrated in the afternoon or evening.

Unlike central Vietnam, where storms and typhoons can bring extended periods of rain, the showers in the south are usually predictable and short-lived, meaning you can still enjoy sightseeing in between. September is also the time when the Mekong Delta’s floating markets are at their most vibrant, thanks to the high water levels. For a detailed breakdown of the weather in the region, check out our guide to South Vietnam in September.

Is it worth visiting Vietnam in September?

September is a pretty good month to visit Vietnam, but it depends on where you go. This is a transitional month when the rainy season starts easing in some areas while intensifying in others. Travelers who are flexible and plan their itinerary wisely can still have a great experience. The lush landscapes, especially in the north, are a highlight, and many parts of the country see fewer tourists compared to peak travel months. However, some coastal areas in central Vietnam may start experiencing heavy rains and occasional storms, which can limit beach activities.

Here’s how different regions of Vietnam compare in September:

• North Vietnam: A good month to visit. The heavy rains of summer start decreasing, and the landscapes—especially the rice fields in places like Mu Cang Chai and Sapa—are at their most beautiful. Temperatures are still warm, and while some showers remain, they don’t usually last all day.
• Central Vietnam: A less ideal month for this region, as the rainy season starts taking hold, particularly in cities like Hue and Hoi An. While there can still be dry days, storms become more likely, and beach conditions deteriorate. However, inland areas like the Central Highlands remain accessible.
• South Vietnam: A decent time to visit, though still within the rainy season. The showers are usually short and predictable, leaving plenty of time for sightseeing. The Mekong Delta is particularly lively due to high water levels, making boat trips more scenic.

Conclusion

September is a good time to explore northern Vietnam’s stunning landscapes and experience the Mekong Delta. If you’re looking for a beach getaway, it’s best to be flexible, as conditions in central Vietnam can be unpredictable. For those who enjoy cultural experiences, cities like Hanoi and Ho Chi Minh City remain great options, as rain doesn’t significantly impact urban exploration. With the right planning, September can be a rewarding month to visit Vietnam.

Pro’s

• Northern Vietnam’s rice fields are at their peak beauty.
• Fewer tourists compared to peak season.
• Rainy season starts easing in some areas, with more dry periods.
• Scenic waterways in the Mekong Delta due to high water levels.

Cons

• Central Vietnam enters the rainy season, with a risk of storms and flooding.
• Beach conditions are unreliable in central and southern Vietnam.
• Rain can still be frequent, especially in the south.

Best beach destinations in Vietnam in September

While Vietnam may not be your primary choice for a dedicated beach holiday in September, you might still want to include a few relaxing beach days in your itinerary. Vietnam has two main coastal regions for beaches: central Vietnam and southern Vietnam, each with different weather patterns. However, September is not an ideal time for a beach holiday. The central coast is entering its rainy season, with increased chances of storms and rough seas, while the south is still experiencing heavy but short tropical downpours. If you’re looking for a beach destination this month, you’ll need to choose carefully based on weather conditions.

Cat Ba Island

Located in northern Vietnam, Cat Ba Island is not typically considered one of the country’s top beach destinations, but in September, it stands out as a better option than central and southern Vietnam. While occasional rain is still possible, the weather is more stable compared to beach towns further south. The island has a few small but scenic beaches, and its real highlight is the opportunity to combine beach time with cruising and kayaking in Lan Ha Bay and Ha Long Bay. If you’re looking for a mix of adventure and relaxation rather than a full beach holiday, Cat Ba can be a great addition to your trip.

Best things to do in September in Vietnam

September offers a unique blend of experiences in Vietnam, as landscapes transform with the changing season. Some destinations become particularly stunning during this time, while certain cultural events make for memorable experiences. Whether it’s the golden rice terraces in the north, powerful waterfalls after the rainy season, or vibrant festivals, there are specific highlights that make this month stand out.

While the activities below are great for September, Vietnam has an endless variety of things to do year-round. To ensure you don’t miss out on must-see sights and experiences beyond seasonal highlights, check out our complete list of best things to do in Vietnam.

1. Witness the harvest season with golden rice terraces in Sapa and Mu Cang Chai

September is one of the most visually stunning times to visit Sapa and Mu Cang Chai, as the rice terraces reach their golden peak just before harvest. These breathtaking landscapes, carved into the mountains by ethnic minority farmers, create an incredible contrast of bright yellow against the lush green hills.

The weather is also more stable compared to previous months, with decreasing rainfall making trekking conditions better. While Sapa is the more well-known destination, Mu Cang Chai offers a less touristy and equally mesmerizing experience, where you can hike through untouched villages and experience authentic local life.

2. Watch lion dances and lantern streets during Mid-Autumn Festival

The Mid-Autumn Festival, known as Tet Trung Thu, takes place in September and is one of Vietnam’s most exciting cultural celebrations. It is especially vibrant in cities like Hanoi and Ho Chi Minh City, where entire streets are transformed with colorful lantern displays and lively lion dances. Families gather to celebrate, children carry lanterns, and traditional mooncakes are sold everywhere. The most atmospheric place to experience it is Hanoi’s Old Quarter, where Hang Ma Street turns into a lantern wonderland. If you enjoy cultural festivals, this is a fantastic time to be in Vietnam.

3. Experience Pu Luong’s stunning golden rice fields at peak harvest time

Pu Luong Nature Reserve is a hidden gem in northern Vietnam, and September is the best month to visit. Like Sapa and Mu Cang Chai, the rice terraces here turn golden just before harvest, but with far fewer crowds. The area is home to traditional stilt-house villages, winding rivers, and limestone mountains, making it a peaceful escape into nature.

September’s weather is also ideal, with the rains easing and temperatures being comfortable for trekking. Whether you stay in an eco-lodge overlooking the terraces or hike through remote villages, Pu Luong is a breathtaking destination during this time of year.

4. See Ban Gioc Waterfall at its most powerful after the rainy season

September is the perfect time to visit Ban Gioc Waterfall, Vietnam’s largest and most spectacular waterfall, as the heavy rains of summer have filled the Quay Son River, making the falls more powerful and impressive than at any other time of the year. Located in the remote province of Cao Bang, near the Chinese border, this natural wonder is surrounded by limestone karsts and lush greenery. While it remains beautiful year-round, visiting in September ensures you see it at its peak, with strong cascades creating a dramatic sight. The surrounding countryside is also at its most vibrant, adding to the stunning scenery.

5. Trek through Ha Giang’s terraced fields just before harvest

September is one of the best times to visit Ha Giang, as its terraced rice fields are preparing for harvest, creating a mesmerizing golden landscape. The province, known for its rugged mountains and breathtaking roads, offers incredible trekking opportunities through remote ethnic minority villages. Unlike Sapa, Ha Giang remains less developed for tourism, providing a more off-the-beaten-path experience.

The weather also starts improving this month, with the heaviest rains of summer subsiding, making conditions better for exploring. Whether you choose to trek in Hoang Su Phi or take a motorbike journey along the famous Ha Giang Loop, this is one of the most rewarding times to visit.

6. Enjoy Dalat’s cooler climate and explore its waterfalls

Dalat is a year-round destination, but September offers a particularly refreshing escape with its cool temperatures and misty landscapes. Located in the Central Highlands, this mountain town enjoys a mild climate, making it a great retreat from the humidity and heat of other parts of Vietnam. The rainy season is coming to an end, and as a result, Dalat’s waterfalls—such as Pongour, Elephant Falls, and Datanla Falls—are at their most powerful, surrounded by lush green forests. If you enjoy nature, waterfalls, and a cooler climate, Dalat is an excellent stop on your September itinerary.

7. Experience Con Dao’s diving season with great visibility

September is one of the best months for diving and snorkeling around the Con Dao Islands, as the waters are at their clearest, offering excellent visibility. This remote archipelago in southern Vietnam is known for its pristine coral reefs, diverse marine life, and untouched beaches. The seas are calmer in September, making it an ideal time to explore underwater. Another unique experience this month is witnessing baby sea turtles hatching and making their way to the ocean, an unforgettable wildlife encounter. If you’re looking for a quiet island getaway with beautiful diving conditions, Con Dao is a great choice.

8. Cycle through Ninh Binh’s scenic countryside

Ninh Binh’s limestone karsts, rice paddies, and winding rivers make it one of the most picturesque destinations in Vietnam, and September is an excellent time to visit. With the rains decreasing, the countryside is still lush and green from the wet season, creating a stunning landscape for cycling through rural villages and rice fields.

Popular routes take you through peaceful backroads to places like Tam Coc, Trang An, and Bai Dinh Pagoda. The cooler temperatures compared to the summer months make outdoor activities much more comfortable, making this the perfect time to explore the area by bike.

9. Explore Hoi An’s lantern-lit streets during Mid-Autumn Festival

Hoi An is magical any time of year, but visiting in September during the Mid-Autumn Festival adds an extra layer of charm. The old town, already famous for its hanging lanterns, becomes even more vibrant with colorful lantern displays, traditional performances, and bustling night markets. While September marks the start of the rainy season in central Vietnam, showers are often short, and the festival atmosphere makes the town feel even more special. Watching the floating lanterns on the Thu Bon River during this time is a highlight of any trip to Hoi An.

10. Discover Hanoi’s historical sights in autumn weather

Hanoi is at its most pleasant in September, as the scorching heat of summer starts to fade and autumn slowly arrives. With slightly cooler temperatures and fewer rainy days than in previous months, this is a great time to explore the city’s historical landmarks, temples, and lakes.

Walking around the Old Quarter, visiting the Temple of Literature or the Ho Chi Minh Mausoleum, and relaxing by Hoan Kiem Lake is much more enjoyable in the milder weather. Hanoi’s tree-lined streets also begin to take on autumn colors, adding to the city’s charm. For those who enjoy a mix of culture, history, and local life, September is an ideal time to visit the capital.

Events and holidays in September

Festivals and holidays can greatly impact your experience while traveling in Vietnam. Some events bring unique cultural experiences, allowing you to witness traditional celebrations, while others may cause minor disruptions, such as crowded attractions or busier transportation. In September, there are a few notable events, ranging from national celebrations to cultural festivals. While many smaller festivals take place in local temples or among ethnic groups, the ones listed below are some of the more widely recognized celebrations in Vietnam.

Travel tip

Many Vietnamese holidays and festivals follow the Lunar calendar, meaning their dates change each year on the Western calendar. This means that some events may fall in different months depending on the year, so it’s always best to check the exact dates if you’re planning to experience a particular festival.

Ghost Month

Date: 7th Lunar Month (August or September)

Ghost Month, also known as Vu Lan, is an important spiritual time in Vietnam when it is believed that the spirits of ancestors and wandering souls return to the world of the living. Families visit temples to make food offerings and burn joss paper, symbolic items meant to be sent to the afterlife. Throughout the country, you may see people making small fires on the streets, burning fake money and other paper goods. While this is mostly a private family observance, temples may be more crowded than usual, and the smell of burning joss paper is common in the evenings.

For more details, read our guide on Ghost Month in Vietnam.

Vietnam National Day

Date: September 2

Vietnam National Day marks the country’s independence from French colonial rule in 1945. It is a patriotic holiday celebrated throughout Vietnam, with the most significant events taking place in major cities. The streets are decorated with Vietnamese flags, and government-organized celebrations include fireworks, parades, and speeches in places like Ba Dinh Square in Hanoi. Locals often take the day off to gather with family, and some businesses may close. In major tourist areas, accommodations and transport can book up quickly, as many Vietnamese use the long weekend for domestic travel.

For more details, check out our guide on Vietnam National Day.

Mid Autumn Festival

Date: 15th day of the 8th Lunar Month (Late September or early October)

The Mid-Autumn Festival, also called Tet Trung Thu, is one of Vietnam’s most colorful and festive holidays, particularly for children. Streets are filled with brightly colored lanterns, lion dance performances, and mooncake vendors selling traditional pastries. The festival is best experienced in Hanoi’s Old Quarter (Hang Ma Street), Ho Chi Minh City’s Chinatown (District 5), and Hoi An, where the historic streets come alive with celebrations. While this is mainly a family event, visitors can enjoy the lively atmosphere, sample mooncakes, and watch street performances. In some places, the crowds can be overwhelming, so it’s best to plan accordingly if you want to witness the festivities.

For more details, check out our guide on Mid-Autumn Festival in Vietnam.

Travel tips for September

Traveling in Vietnam in September requires some preparation, as the weather varies greatly across the country. In some areas, it can still be hot and humid, while others start cooling down. Rain remains a factor in central and southern Vietnam, so packing the right items and planning your itinerary accordingly can make your trip smoother. Below are essential travel tips to help you prepare.

What to bring

Packing for Vietnam in September depends on where you’re traveling. The north is transitioning from the rainy season to drier conditions, while central Vietnam starts experiencing more rain. The south remains warm and humid with occasional showers.

• Light rain jacket September still brings rain, especially in central and southern Vietnam, so a waterproof but breathable jacket is useful.
• Quick-dry clothing Humidity is high, and occasional rain showers can leave clothes damp. Lightweight, quick-drying fabrics are best.
• Mosquito repellent With lingering rains in the south and central regions, mosquitoes are still active. A good repellent is essential, especially in rural areas.
• Comfortable walking shoes Streets can be wet and muddy in some areas, while trekking in the north requires sturdy footwear.
• Sunscreen (high SPF) Even though it’s not peak summer, the sun is still strong, especially in northern and southern Vietnam. Good sunscreen options are limited in Vietnam.
• Layered clothing for the north While most of the country remains warm, mountain areas like Sapa and Ha Giang can feel cooler, especially in the mornings and evenings.

Travel Tip: Don’t pack too much—Vietnam has plenty of affordable laundry services, making it easy to wash clothes along the way. More details here: Laundry Services in Vietnam.

Accommodation

• Booking in advance September is not peak season, but some accommodations in popular areas, especially in northern Vietnam during rice harvest season, can book up quickly.
• Beach resorts in central Vietnam Many resorts may start offering discounts as the rainy season approaches, but weather conditions can be unpredictable.
• Homestays in the north A great option in mild weather.
• City hotels Prices remain reasonable in September, and availability is usually not an issue. Hanoi and Ho Chi Minh City offer a range of options for all budgets.

Getting around

• Domestic flights Booking in advance is generally recommended, but September is not peak travel season, so last-minute flights are often available at reasonable prices.
• Walking Cities like Hanoi and Hoi An are enjoyable to explore on foot in September, as temperatures are slightly cooler compared to the peak summer months. However, sudden rain showers are still possible.
• Car rental with driver A great option for longer journeys, especially if you want to avoid unpredictable rain in central Vietnam or explore mountainous areas in comfort.
• Motorbike travel Road conditions can be challenging in rural areas if it has been raining. Be cautious of wet, muddy roads in northern Vietnam and the risk of sunburn in open areas.

Health and safety tips

• Hydration September is still warm in most areas, so staying hydrated is key, especially when exploring cities or trekking in the north.
• Mosquito precautions Rainy months mean more mosquitoes, particularly in central and southern Vietnam. Using repellent and wearing long sleeves in the evenings helps reduce bites.
• Air quality in big cities In dry weather, air quality in places like Hanoi and Ho Chi Minh City can be poor. Consider wearing a mask if pollution levels are high.
• Food hygiene With humidity and fluctuating temperatures, food can spoil more quickly. Stick to busy restaurants and avoid street food that has been sitting out too long.

Vietnam’s destinations in September

Vietnam’s weather and travel experience can vary significantly depending on the region. This guide has covered Vietnam as a whole, but if you already have an idea of where you want to go, you can explore our destination guides for September. Each guide provides detailed insights on weather conditions, seasonal highlights, and the best things to do in that specific location.

North Vietnam

Hanoi

Vietnam’s capital is known for its rich history, lively street markets, and charming Old Quarter. In September, the intense summer heat starts to ease, making it a great time to explore the city’s cultural sites. A detailed guide: Hanoi in September.

Sapa

A mountain town famous for its terraced rice fields and ethnic minority villages. September is one of the best months to visit, as the rice fields turn golden just before harvest, creating breathtaking landscapes. A detailed guide: Sapa in September.

Halong Bay

A UNESCO-listed bay with thousands of limestone islands and emerald waters. While occasional rain showers are still possible, September offers fewer crowds and improving weather conditions compared to the peak rainy months. A detailed guide: Halong Bay in September.

Ha Giang

A remote mountainous province with dramatic landscapes and winding roads. September is an excellent time to visit, as the rice terraces reach their peak color before harvest, and the weather becomes drier. A detailed guide: Ha Giang in September.

Ninh Binh

Often called “Halong Bay on land,” Ninh Binh features towering limestone formations and scenic river landscapes. The countryside remains lush and green from the rainy season, and cooler weather makes outdoor activities more enjoyable. A detailed guide: Ninh Binh in September.

Mai Chau

A peaceful valley home to ethnic Thai villages and stunning rice paddies. September is a great month for cycling and trekking, as the rice fields turn golden and the weather becomes milder. A detailed guide: Mai Chau in September.

Central Vietnam

Hoi An

A beautifully preserved ancient town known for its lantern-lit streets and rich cultural heritage. September brings the start of the rainy season, but you can still enjoy its vibrant Mid-Autumn Festival celebrations. A detailed guide: Hoi An in September.

Da Nang

A coastal city with beautiful beaches and modern attractions. The weather becomes more unpredictable in September as the rainy season begins, but indoor activities like Ba Na Hills and museums remain great options. A detailed guide: Da Nang in September.

Hue

The former imperial capital, home to the historic Hue Citadel and royal tombs. September marks the beginning of the wet season, so while you may experience rain, the historic sites are still worth exploring. A detailed guide: Hue in September.

Nha Trang

A beach city famous for its long coastline and islands. September is an off-season month for beachgoers as the rainy season sets in, making conditions unpredictable for sunbathing and island trips. A detailed guide: Nha Trang in September.

Dalat

A mountain retreat with a cool climate, waterfalls, and colonial architecture. September is a refreshing time to visit, as the rainy season is easing, and the surrounding nature is lush and green. A detailed guide: Dalat in September.

South Vietnam

Ho Chi Minh City

Vietnam’s largest city, known for its mix of modern skyscrapers and historical landmarks. September is still rainy, but showers are usually short, leaving plenty of time for city exploration. A detailed guide: Ho Chi Minh City in September.

Phu Quoc

A tropical island in the Gulf of Thailand with white sandy beaches. September is part of the rainy season here, with rough seas and limited sunshine, making it a less ideal month for beach trips. A detailed guide: Phu Quoc in September.

Mekong Delta

A vast network of rivers, floating markets, and lush countryside. September is a great time for boat trips, as water levels are high, and the floating markets are at their most lively. A detailed guide: Mekong Delta in September.

Con Dao

A remote island known for its clear waters and national park. September is a good time for diving, as visibility is excellent, and you can witness baby turtles hatching on the beaches. A detailed guide: Con Dao in September.

Mui Ne

A coastal town famous for its sand dunes and beach resorts. September is still part of the rainy season, with a mix of stormy and sunny days, making beach conditions unreliable. A detailed guide: Mui Ne in September.

FAQ about traveling in September