Best Time to Visit Vietnam: Month by Month, and a Two-Week Route

The short answer

February is the best single month to visit Vietnam. Of the nine destinations Rotaly scores in the country, eight are rated suitable in February, and the average comfort score across all of them is the highest of the year. March and April follow closely, with seven of nine.

The months to avoid are easier to name. In July, August and September, not one of the nine destinations scores as suitable. September is the worst month in the country by a wide margin.

Why Vietnam has three seasons at once

Vietnam is more than 1,600 kilometres long. That length is the whole story: the country stretches from a subtropical north that has a genuine cool season to a tropical south that has only a wet season and a dry one. The centre sits between them and follows neither.

The practical consequence is that a month that is perfect in Hanoi can be the wettest month of the year in Da Nang, four hundred kilometres down the coast. December is the clearest example: Hanoi scores 93 out of 100, while Da Nang that same month records 330 mm of rain across 27 rainy days and scores 20.

This is why a single "best time to visit Vietnam" answer is misleading, and why the route below matters as much as the month.

Month by month, scored

The table counts how many of the nine destinations are rated suitable in each month, and gives the average comfort score across all of them.

Two things stand out. The first is how sharp the drop is: between April and May the number of suitable destinations falls from seven to two. The second is that the recovery in autumn is slow — November gets the north back, but the centre is still in its rainy season.

North, centre and south

The north — Hanoi, Ninh Binh, Ha Long, Sapa

Go between November and April. Hanoi's two best months are December and November, scoring 93 and 90, with only seven and eight rainy days respectively. By August the same city records 432 mm of rain over 24 days and scores 24.

Sapa is the exception inside the exception. It is scored suitable in only three months — February, November and December — because the valley spends much of the winter under fog and the summer under rain. If the terraced fields are the reason you are going, note that they are flooded in May and June and turn gold in early September, and that neither period scores well for weather.

The centre — Da Nang and Hoi An

Go between March and June. This is the inverse of the north. Da Nang's best month is April, at 93, with seven rainy days. Its worst is October: 494 mm of rain across 27 days, scoring 19. Hoi An follows the same curve one month wider, suitable from February through June.

If your trip has to be in December or January, the centre is the part of the route to shorten, not the part to build around.

The south — Ho Chi Minh City, Nha Trang, Phu Quoc

Go between December and April. Ho Chi Minh City scores a perfect 100 in January, February and March — four or five rainy days a month, and reliably dry. From May the monsoon sets in and September records rain on 30 days out of 30.

Phu Quoc is the strictest destination in the country: suitable in December, January and February only.

An eight-stop route

Rotaly's suggested route for Vietnam runs north to south, which is the direction that keeps the weather with you if you travel between December and April — you leave the north while it is dry and arrive in the south before the monsoon.

Getting between the stops

• Hanoi → Ninh Binh. Minivan, about 1 hour 50 minutes, roughly $7–12. The cheapest leg on the route.
• Ninh Binh → Sapa. Minivan, around 5 hours 30 minutes, roughly $50–100.
• Sapa → Da Nang. This leg goes through Hanoi: a minivan down from the mountains, then the flight or the train south. Budget most of a day and roughly $45–140.
• Da Nang → Hoi An. Car, 40 minutes, roughly $10–20. Many people stay in one and day-trip to the other.
• Hoi An → Nha Trang. Flight, about 1 hour 50 minutes, roughly $45–120.
• Nha Trang → Phu Quoc. Flight, about 2 hours 15 minutes, roughly $75–220 — the most expensive leg.
• Phu Quoc → Ho Chi Minh City. Flight, about an hour, roughly $40–120.

Ha Long is not on this list, and that is deliberate: it is reached from Hanoi and the experience is the boat, not the town. Most people add it as a one or two-night loop out of Hanoi rather than as a separate stop in the chain.

How long do you need?

Adding up the minimum nights at each stop gives thirteen; adding the maximum gives twenty. Two weeks covers the route at a brisk pace; three weeks covers it comfortably.

If you have ten days, the honest answer is to drop a region rather than speed up. North plus centre, or centre plus south, both work. The one thing that does not work is attempting all three with one night in each place — the internal flights alone will eat the days you saved.

Once you have the month, the rest of the planning is cost and logistics. What a trip to Vietnam costs breaks the daily budget into three tiers, and the practical guide covers money, SIM cards and the things worth knowing before you land.