September is autumn in Northern Vietnam, the beginning of the rainy season in the Central Coast, the high rainy season in the Central Highlands and Southern Vietnam.
In Northern Vietnam the temperatures are more likely pleasant all over the region. There may be some days that the temperatures may get slightly higher but there are breezes that make the atmosphere really pleasant mostly.
There may be typhoons or tropical depressions which often make landfall in northern Vietnam or North of the Central Coast of Vietnam in September. During the time under impact of a typhoon, boat trips are canceled for a few days on Halong Bay and the Lan Ha Bay, between Co To and Quan Lan Islands (Quang Ninh Province) and the shore .
More daily rain with more rainfalls in September is found in the Central Highlands and Southern Vietnam. The temperatures in these two regions are mostly pleasant this month.
It is worth noting that Vietnam’s climate is strongly influenced by global climate change. The skinny and elongated geography of Vietnam with over 3,000km of coastline makes it more vulnerable to changes in the ocean, too. During the year under El Nino impact, the level of temperatures are visibly higher and much smaller rainfalls all over the country; and it is vice versa during the year with La Nina impact which causes more typhoons, more rain and lower temperatures.
Monsoons in Vietnam in September
In September there are three main monsoons affecting Vietnam:
- The Southeasterly Wind which causes pleasant temperatures in most of the North and which may cause showers in the affected regions;
- The Southwesterly Wind, which comes from the Equator which causes daily short-lived and heavy rain and pleasant temperatures in the Central Highlands and southern Vietnam.
It is important to note that there is often a tropical convergence zone of which the axis is across the North of Vietnam or the Central Coast of Vietnam which causes long-lasting and heavy rain in the affected regions. This in combination with more active seasonal monsoon often causes floods and extreme weather.
- The sea and the offshore islands in northern Vietnam are to come under impact of the active Southeasterly Wind in the North and very active Southwesterly Wind in the South in September : pleasant temperatures, rough sea mostly, especially during the times of typhoon or tropical depression.
What to expect from your holidays to Vietnam in September, where to go in Vietnam in September?
Taking the general weather conditions in Vietnam into consideration, for those travelers planning trips to Vietnam or those who are on holidays in Vietnam in September, then there September be some notes as follows:
- September may be not a good time to travel to the far-northern mountains of Vietnam given that it is more likely to rain. While the rain in September is mostly short-lived, but bare hills or steep mountain slopes without forest September pose dangers in or right after heavy rain. During the impact of a tropical depression or typhoon, flash floods and landslides are expected. Flash floods have happened and accidents have been caused by extreme weather in the mountains. It might be good to consult a local travel agency in Vietnam with good experience to know if September of a certain year is good to travel to the far northern mountains of Vietnam.
The Red River Delta is a good place to travel to in September. It is autumn with often lovely sunshine, breezy air and pleasant temperatures.
Keep in mind that there may be typhoons or tropical depressions in northern Vietnam and/or in the North of the Central Coast of Vietnam (i.e : Thanh Hoa, Nghe An and Ha Tinh Provinces) in September, in which case travel between the inland and the islands in the affected areas are disrupted. Given climate change nowadays, this applies to islands all over Vietnam from the north to the south.
- The Central Coast of Vietnam is to have more tolerable or nice temperatures with rain in September. But in a year under impact of La Nina, expect more rain and pleasant temperatures in all over Vietnam including the Central Coast.
The region to the south of the Central Coast including Ninh Thuan and Binh Thuan is more likely to have more rain with pleasant temperatures in September.
- September is getting to be a good time for birding tours in Northern Vietnam as migratory bird species are to arrive by the end of the month. All resident birds are not in nesting or mating time and the birds are more active in September.
- September may be not a good time for birdwatching in: Bach Ma National Park, Cat Tien National Park, Da Lat, Bidoup-Nui Ba National Park, Deo Nui San (Di Linh Plateau, Lam Dong Province). It is the rainy season here and it often rains more often with bigger rainfalls in September compared to the months May-August. Bach Ma National Park is not accessible in a rain or in wet weather. There is more rain and bigger rainfalls in the Central Highlands and southern Vietnam in September which may make your birding experience not that a wonderful one.
- The sea is not that calm all over Vietnam in September. And it is very rough during the time of typhoons or tropical depressions. Expect that travel between the inland and the islands are disrupted.
September is not a good time for beach holidays in Vietnam, except for years when El Nino is at work.
For those who plan a trip to the Central Highlands, expect heavy rain in this region in September and flash floods and land/rock slides. Be extra careful if you plan to travel between Da Lat and Nha Trang via the Khanh Le Pass which is vulnerable to landslides in rainy times.
Those planning holidays to Southern Vietnam in September, then you are likely to have a good time. The temperatures are more likely to be pleasant weather with daily shortlived rain. Avoid traveling in the traffic in flooded streets which are often found in heavy rain. The beaches in Vung Tau, Long Hai and Mui Ne, Phan Thiet are good options near Saigon Ho Chi Minh City.
Con Dao Islands, Phu Quoc Island are to have cloudy days with lovely temperatures of 26-31oC. But it has happened that these islands may be under impact of a typhoon or tropical depression in September and in such cases, expect rain and disrupt in travel between the island and the inland.
It is normal that typhoons and/or tropical depression, if any, in September then it is more likely to come to northern Vietnam. But it has happened that the Central Coast has got some and even if a typhoon or tropical depression makes landfall in northern Vietnam, islands all over Vietnam are affected.
Below you can find Paradissa’s reviews and statistics of the weather in different regions in Vietnam in September 2024
1/ The first 10 days of September 2024
At the beginning of the month, northern Vietnam entered autumn and the region received a strong typhoon, typhoon Yagi. Before the typhoon arrived, there were 3-4 days the the North had warm temperatures at mid day ; pleasant temperatures in the morning, afternoon and at night.
Super Typhoon Yagi, which had been carrying sustained wind speeds of over 200 kph, made landfall in Halong City at 13:00 hours on 7-September-2024. The typhoon maintained strong sustained wind speeds of over 150 kph for over 10 hours after making landfall barreling through Quang Ninh – Hai Phong, Hai Duong, Hung Yen, Bac Ninh and Hanoi. After passing through Hanoi, the typhoon weakened quickly and became a tropical depression (39 kph) when passing through Vinh Phuc – Phu Tho Province.
Typhoon Yagi was an unprecedented typhoon in northern Vietnam where there had been no record of a stronger typhoon. It was an unusual typhoon in the way that the strong wind speeds were maintained for over 10 hours after making landfall and traveling inland. Trees were downed, houses destroyed or damaged, power poles downed, bridges swept a way... in several provinces in northern Vietnam.
After passing through northern Vietnam, typhoon Yagi left unpreceded rain (300-500mm in 24 hours in several places of the North, high river water levels which flooded several cities and provinces in northern Vietnam. Flash floods, landslides with serious consequences caused by Typhoon Yagi were unprecedented and there was no worse record known compared to the aftermath by this typhoon.
The Central Region of Vietnam started having more rain with more tolerable temperatures. The Central Highlands and southern Vietnam entered the high rainy season with frequent streets flooded and very pleasant temperatures. Ho Chi Minh City, Dong Nai and Binh Duong had several places flooded in each rain.
Regional weather patterns in Vietnam in the first 10 days of September 2024 :
- Northeast (Lang Son, Cao Bang, Bac Kan, Quang Ninh, Halong Bay, Hai Phong...): sun, clouds, rain, 24-34/36oC;
- Northwest: sun, clouds, rain, 26-36/37/38oC in Hoa Binh, Yen Bai, Lao Cai; clouds, rain, 23-34/33oC in Son La, Dien Bien Phu, 23-30oC in Lai Chau ;
- Lowlands (Hanoi, Ninh Binh...): sun, clouds, rain, 26-36/37oC.
- North of the Central Coast (Thanh Hoa, Nghe An, Ha Tinh): sun, clouds, rain, 27/28-36oC ;
- Central Coast from Quang Binh, Quang Tri to Hue: sun, clouds, rain, 26-36oC
- Central Coast from Da Nang, Quang Nam, Hoi An to Quang Ngai: sun, clouds, rain, 27-36oC;
- Central Coast from Quy Nhon to Tuy Hoa: clouds, rain, 28-36/37oC ;
- Central Coast in Nha Trang, Khanh Hoa: clouds, rain, 27-35oC ;
- Central Coast Ninh Thuan: sun, clouds, rain, 27-36oC ;
- Central Coast Binh Thuan: clouds, rain, 26-33oC ;
- Central Highlands (Kon Tum, Gia Lai, Dak Lak, Dak Nong, Lam Dong): clouds, rain, 22-29oC mostly , 21-28oC in Gia Lai, 19-27oC Lam Dong;
- East of Southern Vietnam (Ho Chi Minh City, Dong Nai, Binh Duong, Binh Phuoc, Tay Ninh): clouds, rain, 26-32oC;
- West of Southern Vietnam ( The Mekong Delta : Long An, Vinh Long, Tra Vinh, Ben Tre, Ca Mau, Bac Lieu, Can Tho, Vinh Long, Chau Doc, Kien Giang): clouds, rain, 25-30/26-32oC;
Phu Quoc Island enjoyed clouds, rain with pleasant temperatures of 26-29oC ;
Con Dao Islands had clouds and rain with pleasant temperatures of 27-31oC.
03-September-2024
Typhoon Yagi entered the East Vietnam Sea. This was the No3 Typhoon affecting Vietnam in 2024. The weather in northern Vietnam turned just beautiful before the typhoon: breezy, mild sunshine, very pleasant temperatures.
05-September-2024
19:00 hours: Rainfalls in 13 hours: Mường Lèo (Sơn La) 71.9mm, Mù Căng Chải (Yên Bái) 63.2mm, Cửa Ông (Quảng Ninh) 75.7mm, Bạch Long Vỹ (Hải Phòng) 65.4mm,…
07-September-2024
Typhoon Yagi, Typhoon No3 in Vietnam in 2024, was a super typhoon which made landfall in Quang Ninh Province (Halong and the nearby) with sustained winds of destructive power which was maintained for over 10 hours barreling through northern Vietnam with unprecedented damage.
The typhoon caused torrential rain, floods and landslides in several provinces in northern Vietnam. Northern Vietnam had not experienced this type of super typhoon for several decades.
08-September-2024
Dangers related to torrential rain after typhoon Yagi: Hoa Binh, Yen Bai, Lao Cai, Quang Ninh, Lang Son, Cao Bang, Ha Giang, Thai Nguyen, Bac Giang. Traffic was disrupted in several places those provinces.
14:00 hours: Rainfalls in 24 hours: Bản Khoang 2 343.4mm, Tả Giàng Phình 337mm (Lào Cai); Tân Phượng 1 529mm, Tân Phượng 2 476.6mm (Yên Bái); Nấm Dẩn 2 495.6mm, Chế Là 315.2mm (Hà Giang); Trung Minh 248.6mm, Thanh Tương 230mm (Tuyên Quang); Lương Bằng 274mm, Bình Trung 271.2mm (Bắc Kạn); Yên Đổ 363.8mm, Thi Tran Cho Du 335.4mm (Thái Nguyên); Tĩnh Túc 246.2mm, Hồng An 233.2mm (Cao Bằng);...
09-September-2024
Heavy rain in northern Vietnam.
19:00 hours: Rainfalls in 13 hours: Yên Ninh (Yên Bái) 370mm, Đồng Tâm (Hòa Bình) 292.8mm, Mỹ Đức (Hà Nội) 273.8mm, Tp. Nam Định 271.0mm, Tân Hòa (Thái Bình) 215.2mm, …
20:00 hours: Rainfalls in 24 hours: Mường Men 101mm (Sơn La); Đồng Tâm 319mm (Hoà Bình); Cam Đường 135mm (Lào Cai); Minh Bảo 257mm (Yên Bái); Nấm Dẩn2 109mm (Hà Giang); Hùng Đức 126mm (Tuyên Quang); Đại Phạm 188mm (Phú Thọ); Bình Trung 111mm (Bắc Kạn); Trung Hội 151mm (Thái Nguyên); Quảng Lâm 125mm (Quảng Ninh); Cát Bà 121mm (Hải Phòng); Thạch Lâm 144mm (Thanh Hóa);...
10-September-2024
Heavy rain in northern Vietnam with several places flooded. All the rivers in northern Vietnam were at the critically dangerous high levels. Vietnam had not experienced this level of rainfall and high river water levels for decades.
14:00 hours: Rainfalls in 24 hours: Cát Bà 240mm (Hải Phòng); Cao Sơn 151mm (Hòa Bình); Bình Liêu 76.4mm (Quảng Ninh); Quân Chu 101.4mm (Thái Nguyên); Lương Nha 109.8mm (Phú Thọ); Hiền Chung 79mm (Thanh Hóa);...
20:00 hours: Rainfalls in 24 hours: Quang Minh 96.4 mm, Tô Múa 70.4 mm (Sơn La); Cao Sơn (Hào Lý) 165.6 mm, Tân Pheo 142.4 mm (Hoà Bình); Đại Lịch 67 mm, Tà Si Láng 65 mm (Yên Bái); Phúc Yên 81.8 mm, Xuân Hoà 63 mm (Vĩnh Phúc); Lương Nha 109.4 mm, Yên Lương 103.2 mm (Phú Thọ); Quân Chu 76.4 mm, Ký Phú 59.8 mm (Thái Nguyên); Bình Liêu 76 mm, Ba Chẽ 62.2 mm (Quảng Ninh); Trúc Tay 90.4 mm, Mai Đình 71.4 mm (Bắc Giang),…
2/ Vietnam Weather in the Second Decade of September 2024
At the beginning of the second decade of September 2024, northern Vietnam had still been suffering from Super Typhoon Yagi with flooded places and dangerously high river water levels. The Tropical Convergence with axis still over northern Vietnam started moving southward to the North of the Central Coast of Vietnam. Northern Vietnam was still in the danger possibly caused by river water from China and rain water caused by the Tropical Convergence Zone. On 12-September, the North had the first day with mild sunshine since the typhoon.
The Central Coast started having frequent rain in places. There was more rain in the Central Highlands and southern Vietnam.
At the end of the second decade of September 2024, there was Typhoon No. 4 which made landfall in the Central Coast of Vietnam causing heavy rain in several places.
Regional weather patterns in Vietnam in the second 10 days of September 2024 :
- Northeast (Lang Son, Cao Bang, Bac Kan, Quang Ninh, Halong Bay, Hai Phong...): sun, clouds, rain, 24-32/25-33oC;
- Northwest: sun, clouds, rain, 24-32/26-34/36oC in Hoa Binh, Yen Bai, Lao Cai; clouds, rain, 22-32/23-33oC in Son La, Dien Bien Phu, 22-30oC in Lai Chau ;
- Lowlands (Hanoi, Ninh Binh...): sun, clouds, rain, 26-33oC.
- North of the Central Coast (Thanh Hoa, Nghe An, Ha Tinh): sun, clouds, rain, 26-33/32oC;
- Central Coast from Quang Binh, Quang Tri to Hue: sun, clouds, rain, 24/26-32oC
- Central Coast from Da Nang, Quang Nam, Hoi An to Quang Ngai: sun, clouds, rain, 25-32oC;
- Central Coast from Quy Nhon to Tuy Hoa: sun, clouds, rain, 26-33/34oC ;
- Central Coast in Nha Trang, Khanh Hoa: sun, clouds, rain, 26-33/34oC ;
- Central Coast Ninh Thuan: sun, clouds, rain, 26-34oC ;
- Central Coast Binh Thuan: clouds, rain, 26-33oC ;
- Central Highlands (Kon Tum, Gia Lai, Dak Lak, Dak Nong, Lam Dong): clouds, rain, 22-31oC in Kon Tum, 21-29oC in Gia Lai, Dak Lak, 18-27oC Lam Dong;
- East of Southern Vietnam (Ho Chi Minh City, Dong Nai, Binh Duong, Binh Phuoc, Tay Ninh): clouds, rain, 26-31/25-32oC;
- West of Southern Vietnam ( The Mekong Delta : Long An, Vinh Long, Tra Vinh, Ben Tre, Ca Mau, Bac Lieu, Can Tho, Vinh Long, Chau Doc, Kien Giang): clouds, rain, 25-29/26-31oC;
Con Dao Islands had clouds and rain with pleasant temperatures of 26-31oC;
Phu Quoc Island enjoyed clouds, rain with pleasant temperatures of 25-28oC.
18-September-2024:
02:00 A.M Rainfalls in 18 hours: Lý Nhân 160.4mm (Thanh Hóa); Thanh Mai 279.2mm (Nghệ An); Mỹ Lộc 127.2mm (Hà Tĩnh); Hướng Hóa 104.4mm (Quảng Bình); A Bung 144.8mm (Quảng Trị); Cầu Truồi 295.8mm (Thừa Thiên Huế); Suối Đá 270.4mm (TP. Đà Nẵng); Trà My 316mm (Quảng Nam); Trà Nham 257.4mm (Quảng Ngãi); Đắk Man 180.6mm (Kon Tum); ...
3/ Vietnam Weather in the Final Decade of September 2024
There was Typhoon No 4 coded Soulik at the end of the second decade of September 2024 which caused heavy rain in the Central Region and southern Vietnam. The Southwesterly Monsoon got more active due to the presence of the Tropical Convergence Zone with axis over the Central Region of Vietnam, hence rough sea and more rain in southern Vietnam as well as the Central Highlands of Vietnam.
Several places in Quang Binh were flooded. Binh Phuoc has several places flooded too.
Northern Vietnam is getting further into autumn with cloudy or mild-sunshine weather. There were frequent rain in the region, too.
In the evening of 21-September-2024, northern Vietnam received the first spell of the cool Northeasterly Monsoon for the coming winter season of 2024-2025.
Regional weather patterns in Vietnam in the second 10 days of September 2024 :
- Northeast (Lang Son, Cao Bang, Ha Giang, Bac Kan, Quang Ninh, Halong Bay, Hai Phong...): sun, clouds, rain, 19-30oC, 19-32oC in Ha Giang;
- Northwest: sun, clouds, rain, 20-30oC in Hoa Binh, Yen Bai, 23-33oC in Lao Cai; clouds, rain, 18-28oC in Son La, Dien Bien Phu, Lai Chau ;
- Lowlands (Hanoi, Ninh Binh...): sun, clouds, rain, 22-31oC.
- North of the Central Coast (Thanh Hoa, Nghe An, Ha Tinh): sun, clouds, rain, 22-31oC;
- Central Coast from Quang Binh, Quang Tri to Hue: clouds, rain, 22-29oC
- Central Coast from Da Nang, Quang Nam, Hoi An to Quang Ngai: sun, clouds, rain, 26-30/32oC;
- Central Coast from Quy Nhon to Tuy Hoa: clouds, rain, 26-33/32oC ;
- Central Coast in Nha Trang, Khanh Hoa: clouds, rain, 26-32oC ;
- Central Coast Ninh Thuan: clouds, rain, 26-32oC ;
- Central Coast Binh Thuan: clouds, rain, 25-33oC ;
- Central Highlands (Kon Tum, Gia Lai, Dak Lak, Dak Nong, Lam Dong): clouds, rain, 22-29oC in Kon Tum, Gia Lai, Dak Lak, 19-26oC Lam Dong;
- East of Southern Vietnam (Ho Chi Minh City, Dong Nai, Binh Duong, Binh Phuoc, Tay Ninh): clouds, rain, 25-32oC;
- West of Southern Vietnam ( The Mekong Delta : Long An, Vinh Long, Tra Vinh, Ben Tre, Ca Mau, Bac Lieu, Can Tho, Vinh Long, Chau Doc, Kien Giang): clouds, rain, 25-32oC;
Con Dao Islands had clouds and rain with pleasant temperatures of 26-30oC.
Phu Quoc Island enjoyed clouds, rain with pleasant temperatures of 26-28oC ;
Disclaimer: Vietnam weather summary is for reviews of Vietnam weather by month on the basis as “it is” to the best of our knowledge. Paradissa does not guarantee the accuracy of our monthly reviews of Vietnam Weather. Our Vietnam Weather Reviews by month must not be used for making travel decisions or for any other purposes. Paradissa disclaims any liability in connection with with the use of our information.
