These are notes on Vietnam weather in October 2023 and what to know before planning travel holidays to Vietnam in 2023, be it your family tours or your travelers’ Vietnam holidays if you are a tour company or travel agency.
General Weather Patterns in Vietnam in October
October is autumn in northern Vietnam, the rainy season in the Central Coast of Vietnam, high rainy season in the Central Highlands and Southern Vietnam.
As the Southeasterly Wind is more active, all of the North of Vietnam is to have more days with nice temperatures. There is often heavy rain in the North of Vietnam, especially in the far northern mountains.
It is possible that there are typhoons or tropical depressions which may have impact in Northern Vietnam, North of the Central Coast and the Central Coast. Under impact of a typhoon, there may be torrential rain in the far Northern mountains which may cause landslides, rock slides or flash floods. Under impact of a typhoon or tropical depression, cruises on Halong Bay are prohibited.
The Central Coast often has continual heavy rain in October which is attributed to the Intertropical Convergence Zone which has the axis across the region in October. Another reason for heavy and prolonged rain in the Central Coast is due to the Northeasterly Wind and high mountains to the west which blocks clouds. Streets in cities are often flooded temporarily nowadays and it is advised not to take part in traffic when the streets are flooded. Under impact of a typhoon, several places in the Central Coast may be flooded for a few days or a few weeks.
In the Central Highlands and Southern Vietnam, October is the high rainy season. It could be sunny during daytime and heavy rain at the end of a day, or it could be prolonged rain with gloomy skies in the Central Highlands and Southern Vietnam. Traveling in these two regions in October you are to expect a daily rain which is often quite heavy. Due to bad sewage systems that streets in cities are temporarily flooded which disrupts traffic.
And in the Central Highlands heavy rain may cause flash floods and landslides. Thanks to the frequent and long-lasting rain that the temperatures are extremely pleasant in the Central Highlands and mostly nice and pleasant in the South of Vietnam.
Possible Dangers From Extreme Weather: Landslides, Rock Slides, Flash Floods
Landslides, rock slides may take place anywhere which have continual rain for a few days and which have vertical or steep rock cliffs or high slopes. Flash floods may happen in day time or night time when torrential rain is deposited in an area with gradient terrain or mountainous terrain without enough forest or trees covered in a short period of time. Be extra cautious and be vigilant if you have to travel in these regions
1/ Northern Vietnam
- Landslides, flash floods may take place in Cao Bang, Ha Giang, Yen Bai, Mu Cang Chai, Lao Cai, Sapa, Lai Chau, Dien Bien, Son La and Hoa Binh.
Attention on :
- Ha Giang Province: Route to the Nho Que River Jetty in Dong Van Plateau where rock slides have occurred.
- Yen Bai Province: Yen Bai City, Van Yen District, Route 32 at Mu Cang Chai,
- The route to the Muong Hoa Valley in Sapa,
- In the area of the Muong Hoa Valley in Sapa or further to the south of the Muong Hoa Valley,
- Route 6 at the Thung Khe Pass between Mai Chau and Tan Lac Districts of Hoa Binh Province where have rock slides may take place.
2/ Central Highlands and Central Coast of Vietnam
- Namphao (Laos, Bolikhamxay Province) – Cau Treo (Vietnam, Ha Tinh Province): it may be flooded and travel on this route is not possible.
- Rock slides and landslides on the Hai Van Pass between Hue and Da Nang;
- Lo Xo Pass (Ho Chi Minh Road) between Kon Tum and Quang Nam Provinces;
- The Tourist Zones in Da Lat or in the Central Highlands of Vietnam which requires crossing river beds to visit: fatal accidents have occurred due to sudden flash floods.
- Rock slides and landslides often take place on the routes between Da Lat and the lowland :
+ Route 27C between Da Lat and Nha Trang ;
+ Khanh Le Pass on Route 27C where rock slides may happen ;
+ Bao Loc Pass on Route 20 between Lam Dong Province and Dong Nai Province where landlides may happen.
3/ Southern Vietnam
- The provinces at the base of the Central Highlands: Binh Phuoc, Dong Nai (Cat Tien National Park)… Heavy rain may cause floods in these places.
- The Cam Mountain at Tinh Bien, An Giang: heavy rain may cause rock slides.
First 10 Days of October 2023
In the first week of October there was a typhoon in the East Vietnam Sea (Koinu, Typhoon No.4 in 2023) and at the same time Northern Vietnam was hit by the first major spell of the cool Northeasterly Wind in autumn 2023. It was slightly warm and sunny for a few days before it turned extremely pleasant with cloudy skies and beautiful breezes. There was brief rain in several places as the cool wind arrived.
Yen Bai Province had heavy rain which caused floods in Yen Bai City and Van Yen District, a fatal landslide in Van Yen District.
The Central Coast had heavy rain.
The Central Highlands and Southern Vietnam had some prolonged and heavy rain. But there were days that it was bright sun mostly and the rain came only in the afternoon. And there were days it was gloomy skies. Binh Phuoc Province at the base of the Central Highlands had some places flooded for a few days.
Rainfalls measured in 06 hours from 21:00 hours on 08-October: Dap Thi Tran Chu Prong 128.4mm (Gia Lai); Ea Sin 117.2 mm, Thon 10 Xa Ea MDoal 97.4 mm (Đắk Lắk);...
Rainfalls measured in 08 hours 09-October: Lăng Cô (Thừa Thiên Huế) 72.2mm, Suối Lương (Đà Nẵng) 78.2mm, Ea Sin (Đắk Lắk) 114mm, Chư Prông (Gia Lai) 101.2mm,…
Rainfalls measured in 14 hours 09-October: Suối Lương (Đà Nẵng) 219.4mm, Bạch Mã (Thừa Thiên Huế) 131mm, Ia Me (Gia Lai) 168mm, Ea Sin (Đăk Lăk) 148.4mm,...
The weather patterns and temperatures in different regions at the beginning of October 2023 were as follows:
- Northeast of Vietnam: sun, clouds, some rain, 21-29oC;
- Northwest of Vietnam: sun, clouds, rain, 21-29oC in Hoa Binh, Yen Bai, Lao Cai; sun, clouds, rain, 19-29oC Son La and Dien Bien, 23-31oC in Lai Chau;
- Lowlands in northern Vietnam: sun, clouds, rain, 23-31oC;
- North of the Central Coast: some sun in Thanh Hoa, mostly clouds, rain, 23-31oC mostly;
- Central Coast from Quang Binh to Hue: rain, 24-29oC;
- Central Coast from Da Nang to Quy Nhon: rain, 24-32oC;
- Central Coast from Tuy Hoa to Nha Trang: rain, 24-32oC;
- Central Coast in Phan Rang-Thap Cham : clouds, rain, 24-32oC;
- Central Coast in Phan Thiet: clouds, rain, 24-32oC;
- Central Highlands: rain, 21-30oC mostly, 19-28oC in Pleiku.
- East of Southern Vietnam (Ho Chi Minh City, Dong Nai, Binh Duong, Binh Phuoc, Tay Ninh): rain, clouds, 24-33oC mostly;
- West of Southern Vietnam ( The Mekong Delta): clouds, rain, 24-32oC.
The Phu Quoc Island had rain mostly, 25-29oC.
The Con Dao Islands had rain mostly, 26-29oC.
Coming towards the first decade of October in 2023, there was a strengthening spell of the cool Northeasterly Wind which caused the temperatures in Northern Vietnam drop and which caused heavy rain in the Central Coast.
Second 10 Days of October 2023
In the second 10 days of October 2023, Northern Vietnam enjoyed beautiful autumnal weather with mostly breezes, pleasant temperatures and sun and some very light and short-lived rain. The Central Coast of Vietnam underwent torrential and long-lasting rain. The Central Highlands and Southern Vietnam had heavy rain at the end of a day and some sun in daytime.
Rainfalls measured in 24 hours from 08:00 hours of 11-October: Tiên Phước 96,6mm (Quảng Nam); Lưu vực Thủy điện Rào Trăng 4 224,6mm (Thừa Thiên Huế); Ba Long 105mm (Quảng Trị);...
Rainfalls measured in 24 hours from 14:00 hours of 12-October: Hương Vĩnh 153mm (Hà Tĩnh); Tân Lâm 260mm, Đồng Tâm 198,8mm (Quảng Bình); Ba Lòng 87,8mm (Quảng Trị); Tà Lương 118mm (Thừa Thiên Huế), Hồ Phú Lộc 103,2mm (Quảng Nam); …
Rainfalls measured in 24 hours from 02:00 hours of 13-October: Hương Vĩnh 132,6mm (Hà Tĩnh); Tân Lâm 276mm, Đồng Tâm 237,4mm (Quảng Bình); Triệu Hòa 115,2mm (Quảng Trị); Vườn Quốc Gia Bạch Mã 391,8mm (Thừa Thiên Huế), Suối Đá 463,6mm (Đà Nẵng), Núi Thành 246,6mm (Quảng Nam).
Rainfalls measured in 08 hours from 19:00 hours of 13-October: Phú Lộc (Thừa Thiên Huế) 149.8mm, Hòa Phú (Đà Nẵng) 229.2mm, Núi Thành (Quảng Nam) 237mm,…
Rainfalls measured in 24 hours from 08:00 hours of 14-October: Hòa Sơn 459,6mm, Phường Thọ Quang 286,6mm (Thành phố Đà Nẵng), Lộc Trì 411,2mm (ThừaThiên Huế), Phường Vĩnh Điện 304,2mm, Duy Trung 276mm (Quảng Nam), …
Rainfalls measured in 13 hours from 19:00 hours of 14-October: Bạch Mã (Thừa Thiên Huế) 190.6mm, Hòa Sơn (Đà Nẵng) 269.6mm, Bình Phú (Quảng Nam) 195.0mm,...
Rainfalls measured in 18 hours from 13:00 hours of 13-October: Tân Bình (Ninh Thuận) 112.3mm, Đạo Nghĩa (Đắk Nông) 111.4mm, Bù Đăng (Bình Phước) 154.6mm, Thới Lai (Cần Thơ) 142.6mm, Ba Tri (Bến Tra) 112.2mm,…
The weather in different regions in Vietnam:
- Northeast of Vietnam: clouds, isolated rain, 20-29oC;
- Northwest of Vietnam: sun, clouds, rain, 23-29C in Hoa Binh, Yen Bai, Lao Cai; 19-29oC in Son La, Dien Bien; 23-31oC in Lai Chau;
- Lowlands in northern Vietnam: sun, clouds, some rain, 23-31oC;
- North of the Central Coast: rain, 23-28oC;
- Central Coast from Quang Binh to Hue: rain, 24-27oC;
- Central Coast from Da Nang to Quang Ngai: rain, 24-29oC;
- Central Coast from Quy Nhon, Tuy Hoa to Nha Trang: rain, 24-32oC;
- Central Coast from Phan Rang-Thap Cham to Phan Thiet: rain, 24-32
- Central Highlands: rain, 21-29oC, 19-27oC in Pleiku;
- East of Southern Vietnam (Ho Chi Minh City, Dong Nai, Binh Duong, Binh Phuoc, Tay Ninh): rain, 25-33oC;
- West of Southern Vietnam ( The Mekong Delta): rain, 24-32oC.
There were several places in the Central Coast of Vietnam which were flooded due to heavy rain in the region: Ha Tinh, Quang Binh, Quang Tri, Thua Thien-Hue, Da Nang City. In some provinces of these, most schools are closed.
17-October-2023 A tropical depression formed 150km southwest of the Paracel Archipelago (Hoang Sa Islands, Vietnam). packing sustained winds of 39-49kph. The projected path in 12 hours was northwest overing 10kph.
18-October-2023 The tropical depression formed 200km west of the Paracel Archipelago (Hoang Sa Islands, Vietnam). packing sustained winds of 50-61kph. The projected path in 12 hours was northwest covering 10kph.
Rainfalls measured in 24 hours from 02:00 hours of 17-October: Thủy điện La Tó 123,2mm (Quảng Trị); Bạch Mã 391,8mm (Thừa Thiên Huế), Trà Dơn 210,9mm (Quảng Nam); Bà Nà 184,8mm (TP. Đà Nẵng); Trà Thanh 137,4mm (Quảng Ngãi);…
Rainfalls measured in 08 hours from 19:00 hours of 17-October: Hải Sơn (Quảng Trị) 91.8mm, Phong Sơn (Thừa Thiên Huế) 209.6mm, Tân Hiệp (Quảng Nam) 66mm, Cư Pui (Đắk Lắk) 39.8mm, Đắk Wil (Đắk Nông) 66mm, Bù Nho (Bình Phước) 86.4mm, Thông Bình (Đồng Tháp) 39.4mm,…
Rainfalls measured in 24 hours from 02:00 hours of 18-October: Lệ Thủy 143,4mm (Quảng Bình); Mỹ Chánh 255,4mm (Quảng Trị); Thủy Thanh 245,2mm, Lưu vực Thủy điện Rào Trăng 4 244,2 (Thừa Thiên Huế);...
On 20-October-2023 there was a new spell of cool Northeasterly Wind hitting the North and North of the Central Coast of Vietnam bringing the temperatures down to mostly 19-22oC and 16-19oC in the mountains. The cool air mass seemed to have impacted the trajectory of Typhoon Sanba (Typhoon No. 5 in Vietnam in 2023), and that the Typhoon would not have any impact on the inland of Vietnam at all.
Last 10 Days of October 2023
In the last decade of October 2023, there was more heavy rain in the Central Coast, in the Central Highlands and in Southern Vietnam. There was a new spell of the cool Northeasterly Wind in the North and in the Central Coast of Vietnam. The North of Vietnam enjoyed mostly sunny days. The far-northern mountains had some days with cool weather.
There was a flash flood at a tourist zone in Da Lat which caused an accident.
Regional weather at the end of the last 10 days of October 2023
- Northeast : sun, clouds, isolated rain, 20-32oC;
- Northwest : sun, clouds, some rain, 22-32oC in Hoa Binh, Yen Bai & Lao Cai; clouds, rain, 21-29oC in Son La, 21-31oC in Lai Chau, Dien Bien;
- Lowlands in Northern Vietnam: sun, clouds, isolated rain, 23-32oC ;
- North of the Central Coast (Thanh Hoa, Nghe An, Ha Tinh) : clouds, rain, 23-30oC;
- Mid Central Coast to the north of Hai Van (Quang Binh, Quang Tri, Hue): rain, 26-32oC in Quang Binh, 24-30oC in the other;
- Mid Central Coast to the south of Hai Van (Da Nang, Quang Nam, Quang Ngai): sun, clouds, rain, 24-32oC;
- South Central Coast (Quy Nhon – Nha Trang): sun, clouds, rain, 25-32oC
- South Central Coast ( Phan Rang-Thap Cham to Phan Thiet : sun, clouds, rain, 24-32oC;
- Central Highlands : some sun, clouds, rain, 20-31oC, 19-29oC in Pleiku;
- East of Southern Vietnam (Ho Chi Minh City, Dong Nai, Binh Duong, Binh Phuoc, Tay Ninh): sun, clouds, rain, 24-33oC;
- West of Southern Vietnam ( The Mekong Delta): sun, clouds, rain, 24-33oC;
The Phu Quoc Island had clouds, rain, 26-30oC.
There was a weak spell of the Northeasterly Wind hitting the North of Vietnam on 28-Oct and the North of the Central Coast as well as the Central Coast 1 or 2 days later. The spell of wind, which traveled along the coast accumulating moister before hitting the inland, caused brief rain and drop in temperatures in Northern Vietnam and heavy rain in the Central Coast of Vietnam (including the North of the Central Coast). There was a renewed spell of cool Northeasterly Wind, which traveled through the continent only, hitting Northern Vietnam on 30-November which caused dry weather and further drop in temperatures in the region. The Central Coast continued with rain.
Rainfalls measured in 15 hours from 00:00 hours of 28-October: Kan Hồ (Lai Châu) 63.8mm, Quảng Ngần (Hà Giang) 70mm, Thanh Thịnh (Bắc Kạn) 73.4mm, Cấm Sơn (Lạng Sơn) 64.6mm, Thần Sa (Thái Nguyên) 92.6mm, Thanh Lương (Hà Nội) 85.5mm, Đồng Tâm (Quảng Ninh) 63.6mm, Thọ Bình (Thanh Hóa) 76.4mm,…
Rainfalls measured in 06 hours from 08:00 hours of 28-October: Hua Bun 47,6mm (Lai Châu), Thạch Lâm 45,6mm (Cao Bằng), Nậm Kè 41,2mm (Điện Biên)...
Rainfalls measured in 24 hours from 19:00 hours of 28-October: Chợ Tràng 141mm (Nghệ An); Hương Quang 125mm, Đức Bồng 124mm (Hà Tĩnh); Thiết Kế 108mm (Thanh Hóa);..
Rainfalls measured in 13 hours from 02:00 hours of 28-October: Mường Giang (Sơn La) 109.6mm, Cao Bồ (Hà Giang) 100.6mm, Hưng Phú (Nghệ An) 213.2mm, Cương Gián (Hà Tĩnh) 160mm,…
Rainfalls measured in 24 hours from 20:00 hours of 28-October: Lục Dạ 141,4mm, Thanh Hương 103,8mm (Nghệ An); Sơn Kim 2 178,2mm, Sơn Lâm 133,4mm (Hà Tĩnh);...
Rainfalls measured in 24 hours from 08:00 hours of 29-October: Chợ Tràng 167,0 mm (Nghệ An); Phú Gia 302,0mm (Hà Tĩnh); Trường Xuân 193,2mm (Quảng Bình); Hiền Lương 246,2mm (Quảng Trị); Hồ Thọ Sơn 67mm (Thừa Thiên Huế), Hòa Hải 82,8mm (Tp. Đà Nẵng); Ba Điền 73,2mm (Quảng Ngãi); Cù Mông 72,0mm (Phú Yên)…
Rainfalls measured in 13 hours from 19:00 hours of 29-October: Đức Hương (Hà Tĩnh) 284mm, Trường Xuân (Quảng Bình) 193mm, Trung Hải (Quảng Trị) 241.2mm,...
Rainfalls measured in 13 hours from 07:00 hours of 31-October: Thạch Sơn (Hà Tĩnh) 192.6mm, Trà Giáp (Quảng Nam) 243.8mm, Trà Thanh (Quảng Ngãi) 253.6mm, Canh Liên (Bình Định) 142.2mm, Đức Bình Đông (Phú Yên) 132.4mm, Ea M Doal (Đắk Lắk) 179.8mm,...
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