Vietnam Weather and Climate in September

Vietnam is a diverse and beautiful country that offers something for everyone. But what is the weather like in September? Is it a good time to visit? In this article, we will give you an overview of the weather conditions in different regions of Vietnam, as well as some tips on what to do and where to go in September. Whether you are looking for culture, nature, or relaxation, you will find it in Vietnam.

September is another transitional month in Vietnam when the weather keeps changing in each part of the country.  If the South is steady in the hot weather with rainy conditions and dene humidity, the Central regions get the increase on wet weather, especially towards the end of month when rain is expected to become more frequent. In contrary, there is less rainfall in the North.

For the mountainous areas, the conditions are improving which allows trekking as a possible option again. The plenty of sunny days also give more opportunity on choice of Vietnam’s incredible cities and natural landscapes. Keep reading this article for more information to prepare accordingly for the best holiday to Vietnam in this month.

Weather in September in some famous places in Vietnam

Vietnam has different climate zones and weather patterns depending on the region and altitude.

September marks the transitional period for Vietnam’s weather. In the North, autumn begins and rainfall diminishes, while the Center and South experience peak rainy season with potential storms or typhoons. Nevertheless, visiting Vietnam during this time has its advantages. The weather remains warm and sunny, allowing you to fully enjoy the country’s stunning beaches, cities, and natural landscapes.

During September, rainfall in the North and South of Vietnam is initially high but gradually decreases towards the end of the month. Conversely, Central Vietnam experiences a significant increase in rainfall, ranging from moderate to very high.

If you plan to visit Vietnam in September, rest assured that it is still a favorable time to explore the country. You can bask in the beauty of its remarkable beaches, cities, and natural wonders, all while enjoying warm weather and abundant sunshine.

Sapa

Sapa is a mountainous town in the north of Vietnam, inhabited by ethnic minorities such as the Dzao and Hmong. It is a popular tourist destination for its scenic beauty, cultural diversity, and cool climate. In September, Sapa experiences a transitional weather between the rainy season and the dry season. The average temperature is around 20°C (68°F), with highs of 27.5°C (81.5°F) and lows of 17.6°C (63.68°F).

September is one of the wettest months in Sapa, with an average rainfall of 192mm (7.6 inches) and 22 rainy days. However, the rain is usually less frequent and intense than in August, and it may vary depending on the altitude and location. September is also one of the few months when visitors can experience all four seasons in one day in Sapa. The mornings can be clear and sunny, the afternoons can be cloudy and rainy, the evenings can be chilly and foggy, and the nights can be cold and windy.

Despite the unpredictable weather, September is still a great time to visit Sapa and enjoy its many attractions. You can admire the stunning rice terraces that turn golden yellow before the harvest season, hike to the villages of ethnic minorities and learn about their culture and traditions, visit the colorful markets and festivals that take place in this month, such as the Mid-Autumn Festival, or relax at a comfortable hotel or homestay with a view of the mountains.

Hanoi

Hanoi is one of the best places to visit in Vietnam in September, as you can enjoy the festive atmosphere of the Mid-Autumn Festival.

Hanoi is the capital city of Vietnam, located in the north of the country. It is a cultural, political, and economic center with a rich history and heritage. In September, Hanoi enters the autumn season, which is considered one of the best times to visit the city. The average temperature is around 27.8°C (82°F), with highs of 31.7°C (89°F) and lows of 24.3°C (76°F).

September is also one of the driest months in Hanoi, with an average rainfall of 109.5mm (4.3 inches) and 5 rainy days. However, some occasional showers or thunderstorms may still occur, especially in the afternoon or evening.

September is a pleasant month to enjoy the outdoor activities and attractions in Hanoi. You can explore the Old Quarter, visit the Ho Chi Minh Mausoleum and Museum, admire the Temple of Literature and the One Pillar Pagoda, or relax at the Hoan Kiem Lake and the West Lake.

September is also a festive month in Hanoi, as it celebrates Vietnam’s Independence Day on September 2nd with various events and activities around the city. Moreover, you can also experience the Mid-Autumn Festival, which is a traditional celebration of children, mooncakes, and lanterns.

Ninh Binh

The average maximum daytime temperature in Ninh Binh in September lies at 31.8°C (89.24°F). The average minimum temperature goes down to around 24.6°C (76.28°F) (often the minimum temperature is noted at night). September is part of the rainy season with an average precipitation of 231mm (9.1 inches). There are generally around 14 rainy days.

Ninh Binh is a province in the north of Vietnam, famous for its natural and cultural attractions, such as the Trang An Landscape Complex, the Tam Coc-Bich Dong caves, the Bai Dinh Pagoda, and the Hoa Lu Ancient Capital. In September, Ninh Binh has a warm and humid climate, with an average temperature of 28°C (82°F), a high of 31.8°C (89°F) and a low of 24.6°C (76°F).

September is also part of the rainy season in Ninh Binh, with an average rainfall of 50.4mm (2 inches) and 9 rainy days. However, the rain is usually light and short-lived, and does not affect much the outdoor activities.

This month is a good time to visit Ninh Binh and enjoy its scenic beauty and cultural heritage. You can take a boat ride along the rivers and canals, admire the limestone karsts and caves, visit the ancient temples and pagodas, or cycle around the countryside and villages.

Halong Bay

The average temperature in Halong Bay in September ranges from a high of 86°F (30°C) to a low of 78°F (26°C). The average temperature is 28°C and hardly lower than 22°C. There are some extremely hot days, with the temperature hitting over 30°C. The weather is rather hot in the daytime and cools down at night. September signals the arrival of autumn on Halong Bay and is still in the rainy season. The temperatures and rainfall are on a gradual decline.

Although early September can have a lot of rain, but late September the weather will be better in Ha Long Bay

Halong Bay is a UNESCO World Heritage Site in the northeast of Vietnam, famous for its spectacular scenery of limestone islands, caves, and floating villages. In September, Halong Bay has a hot and humid climate, with an average temperature of 27.5°C (82°F), a high of 30.4°C (87°F) and a low of 24.8°C (77°F).

September is also one of the rainiest months in Halong Bay, with an average rainfall of 166.6mm (6.6 inches) and 16 rainy days. The rain can be heavy and persistent, especially in the second half of the month, and may cause flooding or landslides in some areas.

September is not the ideal month to visit Halong Bay, as the weather can be unpredictable and affect your cruise plans. However, if you don’t mind the rain, you can still enjoy some of the attractions and activities in Halong Bay, such as kayaking, swimming, exploring caves, visiting floating villages, or relaxing on board.

Hoi An

September, the first month of the autumn in Hoi An, is also a hot month, with an average temperature ranging between max 31°C (87.8°F) and min 24°C (75.2°F). The total rainfall accumulates to around 297mm and nearly 20 rainy days can be expected in this month.

Hoi An is a charming town in the central coast of Vietnam, known for its well-preserved ancient architecture, cultural heritage, and beautiful beaches. In September, Hoi An has a hot and humid climate, with an average temperature of 27.6°C (82°F), a high of 29.4°C (85°F) and a low of 25.8°C (78°F). September is also one of the rainiest months in Hoi An, with an average rainfall of 467mm (18.4 inches) and 16 rainy days. The rain can be heavy and prolonged, especially in the second half of the month, and may cause flooding or landslides in some areas.

September is not the best month to visit Hoi An, as the weather can be unpredictable and affect your travel plans. However, if you don’t mind the rain, you can still enjoy some of the attractions and activities in Hoi An, such as visiting the Old Town, exploring the countryside by bike, taking a cooking class, or shopping for souvenirs.

Da Nang

Da Nang is a coastal city in the central region of Vietnam, famous for its long sandy beaches, modern bridges, and historical sites. In September, Da Nang has a hot and humid climate, with an average temperature of 26.9°C (80°F), a high of 29.7°C (85°F) and a low of 24.4°C (76°F).

September is also one of the rainiest months in Da Nang, with an average rainfall of 308.9mm (12.2 inches) and 12.8 rainy days. The rain can be heavy and frequent, especially in the second half of the month, and may cause flooding or landslides in some areas.

September is not the best month to visit Da Nang, as the weather can be unpredictable and affect your travel plans. However, if you don’t mind the rain, you can still enjoy some of the attractions and activities in Da Nang, such as swimming, surfing, parasailing, visiting the Marble Mountains, the Cham Museum, or the Ba Na Hills.

Mekong Delta

The climate of Mekong Delta in September is wet (with 6.5in of rainfall over 13 days). The weather’s not getting better compared to the previous month since in August there is an average of 5.7in of rainfall over 11 days. The climate is good here this month. Temperatures are up to 90°F.

Mekong Delta is a vast region in the south of Vietnam, where the Mekong River splits into nine branches and flows into the sea. It is known for its rich biodiversity, cultural diversity, and agricultural productivity. In September, Mekong Delta has a hot and humid climate, with an average temperature of 28°C (82°F), a high of 31°C (88°F) and a low of 25°C (77°F).

September is also one of the rainiest months in Mekong Delta, with an average rainfall of 165mm (6.5 inches) and 13 rainy days. The rain can be heavy and frequent, especially in the second half of the month, and may cause flooding or landslides in some areas.

September is not the best month to visit Mekong Delta, as the weather can be unpredictable and affect your travel plans. However, if you don’t mind the rain, you can still enjoy some of the attractions and activities in Mekong Delta, such as cruising along the rivers and canals, visiting the floating markets and villages, exploring the fruit orchards and rice fields, or experiencing the local festivals and cuisine.

Ho Chi Minh City

The average temperature in Saigon (Ho Chi Minh City) in September is around 27.7°C (81.86°F) with high temperature of 31 °C (88 °F) and low temperature of 25 °C (77 °F). The majority of days in September receive persistent heavy downpours.

Ho Chi Minh City is the largest and most populous city in Vietnam, located in the south of the country. It is a vibrant and dynamic metropolis with a rich history and culture. In September, Ho Chi Minh City has a hot and humid climate, with an average temperature of 27.7°C (82°F), a high of 31.3°C (88°F) and a low of 24.8°C (77°F). September is also one of the rainiest months in Ho Chi Minh City, with an average rainfall of 213.3mm (8.4 inches) and 16 rainy days. The rain can be heavy and frequent, especially in the afternoon or evening, and may cause flooding or traffic jams in some areas.

September is not the best month to visit Ho Chi Minh City, as the weather can be unpredictable and affect your travel plans. However, if you don’t mind the rain, you can still enjoy some of the attractions and activities in Ho Chi Minh City, such as visiting the War Remnants Museum, the Reunification Palace, the Notre Dame Cathedral, or the Ben Thanh Market.

Phu Quoc

The average temperature in Phu Quoc during September is around 28.2°C (82.76°F). The temperature in September ranges between 27.3°C (81.14°F) and 28.9°C (84.02°F). It is still in the rainy season so the weather of Phu Quoc this time is cool with high humidity of about 85%. The amount of rain is large with an average of 257mm of precipitation and 17 rainy days.

Phu Quoc Island is a great option for beach lovers who want to avoid the rain in Southern Vietnam in September.

Phu Quoc is an island in the south of Vietnam, famous for its pristine beaches, tropical forests, and diverse wildlife. In September, Phu Quoc has a hot and humid climate, with an average temperature of 28.2°C (83°F), a high of 30.8°C (87°F) and a low of 25.8°C (78°F). September is also one of the rainiest months in Phu Quoc, with an average rainfall of 257mm (10.1 inches) and 20.5 rainy days. The rain can be heavy and frequent, especially in the afternoon or evening, and may cause flooding or landslides in some areas.

September is not the best month to visit Phu Quoc, as the weather can be unpredictable and affect your travel plans. However, if you don’t mind the rain, you can still enjoy some of the attractions and activities in Phu Quoc, such as swimming, snorkeling, diving, hiking, or visiting the Phu Quoc National Park or the Vinpearl Safari.

Climate by Region in September

Northern Vietnam

Popular destinations: Hanoi, Halong Bay, Cat Ba, Sapa, Ha Giang, Mu Cang Chai, Ninh Binh, Mai Chau, etc.

Milk flowers bloom on the streets of Hanoi capital in September

September sees the end of summer season for its Northern part although you can still expect plenty of hot weather and rain with the temperature of 28^oC on average. When the month comes to the latter end, the temperature starts to drop a little and the rainfall becomes less frequent. The weather in the far North starts to improve for possible trekking options, and the crops are coming near to their harvest season which offer great chance for photographers.

Central Vietnam

Popular destinations: Hoian, Danang, Hue, Nha Trang, Quy Nhon, Dalat, etc.

Central Vietnam experiences heavy rainfall and storms in September, which may affect your sightseeing plans.

The Central region is ready for a change in September when the rainfall is on increase. Temperatures drop a little at average 28^oC and stormy weather is a possibility, especially towards the end of the month. Although the region still enjoys some sunny days, beach lovers can have no guarantees of sunshine. Trekking and adventure activities in Dalat and Central Highlands are still unadvisable due to very wet conditions while some of Phong Nha caves are off limits due to flooding.

Southern Vietnam

Popular destinations: Ho Chi Minh City, Phan Thiet & Mui Ne, Mekong Delta, Long Hai & Ho Tram, Con Dao & Phu Quoc, etc.

The cooling night of Ho Chi Minh City

There are not too much change on the weather of South Vietnam in September in comparison to August although the rainfall is decreasing as the month progresses. The region remains wet with the rainfall could be over 200mm, however, you still expect dry spells and sunny days with the average temperature at 28^oC because Ho Chi Minh City can boast up to 11 hours each day with the sun.

Travel Guide for September

In general, Vietnam in September is a great time to visit, as the weather is mild and the scenery is beautiful12.Some of the best destinations to visit in Vietnam in September are:

• Hanoi, where you can enjoy the poetic early autumn and the fragrant milk flowers.
• Ninh Binh, where you can admire the stunning karst landscape and the ancient temples.
• Sapa, where you can trek through the yellow terraced fields and meet the ethnic minorities.
• Mu Cang Chai, where you can witness the harvest festival and the colorful costumes of the locals.
• Hoi An, where you can explore the charming old town and the tranquil river delta.

Blackboard Tree Flowers (or “milk flower” – hoa sua) flourish in September and October so it’s the signal of autumn in Vietnam, especially as an indispensable part in Hanoi’s autumn. The white clusters of flowers look like the tiny white lanterns hidden behind the greenish foliage while its sweet scent intensively spread into small alleys and streets of the capital. If your visit falls into September 2, you will witness the massive celebrations that mark Vietnam on National Independence Day.

Late September can be good time to get viable option for trekking in the mountains of Sapa, Mau Son, and Mu Cang Chai, as sunny days become the norm. Besides, this is a picturesque time of year to visit Mu Cang Chai as the region’s endless rice fields turn a golden color, ready to harvest.

Paragliding on Mu Cang Chai in the harvest season

Read more about Mu Cang Chai: https://vietnamtravel.com/mu-cang-chai-overview/

Visiting Ninh Binh which resembles Ha Long Bay, but on land. There are many famous and fascinating sites in the area that worthy your visit here, including the Gothic Phat Diem Cathedral; Bai Dinh pagoda; or explore the rice paddies and cave-riddled mountains of Trang An and Tam Coc by rowing boat.

Charming river scene while boating on Ngo Dong river

Read more about:

Tam Coc – Bich Dong: https://vietnamtravel.com/tam-coc-bich-dong/
Trang An Complex: https://vietnamtravel.com/trang-an-scenic-landscape-complex/

Northern Central Vietnam including Hue, Hoian generally get more rains than Nha Trang and south Central Vietnam, which sees more dry, sunny days. If wet conditions cannot put you off visiting, this region is absolutely worthy on your travel list in September.

Floating water season from September to November gives the Southwest of Vietnam many chances to contemplate the beautiful sceneries. It will be great for rowing a boat and enjoy the beautiful lotus field in Thap Muoi which is located away from Ho Chi Minh around 130 kilometers in the South; or admire the beauty of Tra Su Cajuput Forest (An Giang) which is also a must-visited destination during this time.

The beauty of Tra Su Cajuput Forest in floating water season

This is also a good month to explore the Mekong Delta because the waterfront and water-borne life is at its most active and locally grown fruits, such as dragon fruit and mango, are at their prime.

When traveling to Vietnam in September, some thin and breathable clothes like short shirt, thin skirts and shorts as well as sunscreen will work. You can also bring a long dress or long sleeve T shirt in case of the temperature drops at night. Raingear is necessary to prepare for this month to avoid any wetness.
Dress code for cultural or spiritual places are still required at formal ones to express your respects.

As September is still off season, you can enjoy exploring without the crowds, and tourist prices are generally at their lowest.

September Events

National Independence Day Celebration (nationwide).

The image of the national flag flooded the streets on the National Independence Day Celebration

This is one of the most significant holidays in Vietnam, marking the day of 2 September 1945 when the revolutionary leader Ho Chi Minh declared Vietnam’s independence from France at Ba Dinh Square. When the holiday comes, every Vietnamese citizen both living in or outside Vietnam are celebrating this day with flags, cheerful festivities and fireworks at night. Remember to head out into the streets to join the locals in an exuberant celebration of Vietnamese patriotism and pride.

Keo Pagoda Festival (Thai Binh)

The opening of Keo Pagoda Festival in Thai Binh Province.

Nestled on Duy Nhat Commune, Vu Thu District, Thai Binh Province, Keo Pagoda is one of the most unique and spectacular structures of Vietnam which is recognized as a Special National Monument. The Keo Pagoda festival is held twice per year in the spring on the fourth day of the first lunar month, and in the autumn from the 13^th to the 15^th day of the ninth lunar month, to commemorate Ly Quoc Su-Priest Khong Lo. Autumn festival (September-October according to solar calendar) will include palanquin procession, incense offerings, swimming race and traditional dances.

Do Son Buffalo Fighting Festival (Hai Phong)

This festival has been long conducted within the region since the 18th century and annually operated on the 9th day of the 8th month in lunar calendar (August-September, varying by year).
Not only associating with Water Goddess worshiping and sacrificing customs, the festival also expresses the bravery and chivalry of people in the coastal city of Hai Phong.

Kate Festival (Ninh Thuan)

Kate Festival – the most unique festival of the Cham community in Ninh Thuan Province.

Kate Festival is held in Ninh Thuan Province in 9^th month of lunar calendar (September – October, varying by the year). This is also called Mbang Kate which is the most unique festival of the Cham people to commemorate the merits of gods and also national heroes such as Po Klong Garai, Po Rome, … This is the place to show the characteristics of culture, activities, customs, beliefs, techniques, arts, and customs through sacrifices, costumes, musical instruments, hymns as well as praising farming, crops, flourishing, traditional products and trades …On this occasion, the local people can relax, meet and wish one another fortune in the future.

Please check information about Vietnam weather in other months of year at here:

• https://vietnamtravel.com/vietnam-weather/
• https://vietnamtravel.com/vietnam-weather-in-january/
• https://vietnamtravel.com/vietnam-weather-in-february/
• https://vietnamtravel.com/weather-of-march-in-vietnam/
• https://vietnamtravel.com/vietnam-weather-in-april/
• https://vietnamtravel.com/vietnam-weather-in-may/
• https://vietnamtravel.com/vietnam-weather-in-june/
• https://vietnamtravel.com/vietnam-weather-in-july/
• https://vietnamtravel.com/vietnam-weather-in-august/
• https://vietnamtravel.com/vietnam-weather-in-october/
• https://vietnamtravel.com/vietnam-weather-in-november/
• https://vietnamtravel.com/vietnam-weather-in-december/