Best Time for the Trang An Boat Tour
When to take the Trang An boat tour: the dry months from November to April, the wet August and September that close the boats, Tet, and the hour of the day.
The driest months at Trang An are December to February, with under 30 mm of rain a month on the long-term record for Ninh Binh, and November and March to April are mild. August and September are the wettest, 315 and 362 mm, and those are the weeks high water closed the boats in 2026. Avoid the eve and first day of Tet, when Trang An closes.
The calendar above is the day from Hanoi with the Trang An boat, from $52 in current promotion (usually $57) a person (checked November 2026).
Month by month
| Month | Mean temperature | Rain | Rain days | On the water |
|---|---|---|---|---|
| January | 16.6 C | 28 mm | 9 | Cool, dry; bring a layer |
| February | 17.5 C | 26 mm | 13 | Little rain, but on many days; Tet falls here or in late January |
| March | 19.9 C | 46 mm | 16 | Light rain on many days |
| April | 23.7 C | 74 mm | 12 | Warm, still fairly dry |
| May | 27.3 C | 169 mm | 13 | Hot; the rains begin |
| June | 29.0 C | 211 mm | 13 | Hot and wet |
| July | 29.2 C | 236 mm | 14 | The hottest month |
| August | 28.5 C | 315 mm | 16 | Wet; storms can close the site |
| September | 27.3 C | 362 mm | 15 | The wettest; floods closed the boats in 2026 |
| October | 25.0 C | 219 mm | 12 | Drying out |
| November | 21.8 C | 67 mm | 8 | Mild and dry |
| December | 18.3 C | 29 mm | 6 | Cool and dry |
Long-term monthly normals for the Ninh Binh station from Vietnam’s national building code QCVN 02:2022/BXD (Ministry of Construction; data to 2017), rounded. Not a forecast.
Check dry-season dates for the boat day
The flood weeks

The rain matters more on the water than on land: the boats pass through caves at water level, and when the water rises in the caves the routes close. In 2026 route 3 closed on 31 July and reopened on 2 August; one alternative route replaced the three from 21 August and the whole site stopped from 23 August during storm Narra; the area reopened on 25 August; two adjusted routes ran on 15 and 16 September, and on 17 September the boats stopped. Reports dated 20 September have them reopened from 13:00 on one temporary route, until further notice; we found no notice restoring routes 1, 2 and 3 up to 1 November 2026. The 2026 closures has each date and its source. If you travel between July and October, book with free cancellation and check the state of the site the day before.

Tet
For Tet 2026 Ninh Binh’s tourism department listed Trang An as closed on 16 and 17 February, the last day of the lunar year and the first day of Tet, while Tam Coc closed for part of each day and Hoa Lu, Bai Dinh and Mua Cave stayed open. The dates move every year with the lunar calendar, and some tours add a Tet surcharge. Check the next year’s list before you book a day around Tet.
The hour of the day
The day tours from Hanoi reach the wharf at about 13:30, after Hoa Lu and lunch, and are on the water through the early afternoon. Staying in Ninh Binh lets you take the boat in the morning: the private day by Asian Discovery Travel starts at the wharf at about 10:00 (see the private day). Weekends and public holidays are busy in Ninh Binh, so a weekday is quieter.
Pick your day
Hanoi - Ninh Binh: Hoa Lu, Trang An Boat Ride & Mua Cave Tour
Hoa Lu, up to 2 hours on the Trang An boat, then Mua Cave; free cancellation up to 24 hours before.
Check dates →Hanoi/Ninh Binh: Trang An & Tam Coc Boat Day Tour
Your own car and guide; Trang An at about 10:00, Tam Coc after lunch, Mua Cave at sunset.
See the private day →Prices, ratings and review counts from the listings (GetYourGuide checked November 2026). Operators price by date and season, so treat the figures as the shape of the market, not a quote.
More Operators on the Water
Trang An Boat Days with Open Dates
Day tours to Trang An and Ninh Binh, with live availability. Times and cancellation terms are on each listing.

A Dry-Season Day on the Water
The day from Hanoi rows you through Trang An from 13:30, with Hoa Lu before and Mua Cave after.
Check dates