Ly Son Island: Sea Months and Cancelled Boats
You worry a rough sea could trap you on the island or stop you getting there.
The boats to Ly Son are most likely to stop in the wet and typhoon season, from September to December. Outside it, a single windy day can still cancel a sailing. Choose dry-season dates, keep a spare day on each side of your island stay, and never put the island on the last day before a flight.
Which months carry the most sea risk?
Da Nang lists its wet and typhoon season as September to December, and its dry season as January to August2. On the central coast, rain starts in August or September and peaks in October and November1. October is Da Nang’s wettest month, at about 628 mm of rain3.
Vietnam is also affected by 6 to 8 typhoons or tropical cyclones a year4. Treat September to December as the months when the sea most often decides your plan.
What does a cancellation actually cost?
A cancelled boat costs you time first. You may wait on the mainland for another sailing, or stay longer on the island than you booked. It can also cost you a night of accommodation and a connecting flight.
The loss grows when the cancellation hits the day before you fly home. That is the one scenario to design out.
How do you build a buffer?
- Add one spare day before your flight home, after the island.
- Add a night in Da Nang before the sailing, so you start rested and near the port.
- Book accommodation that lets you change dates.
- Check the weather and the sailing status the day before and the morning of the trip.
If your leave is short, drop the island rather than the buffer. Our travel-day checker shows whether the days still add up.
What if the sea turns while you are there?
Tell your lodging at once, and ask to extend. Contact your airline about the flight home. Check what your travel insurance covers for delay.
Do not try to buy a seat on a small boat in rough water to save a day. A safe boat that runs late is better than a fast one that should not sail. Our island ferry safety checklist covers life jackets and the questions to ask before boarding.
Where does this fit the rest of your planning?
Start with how to get to Ly Son Island for the route and the legs. The Ly Son Island profile covers the sights and where to stay. To compare regions by month, use Vietnam weather by month. More transport advice sits in Getting around Vietnam.
Share your dates and your flight home, and we will check whether your Ly Son window avoids the wet months and where to place the spare day.
Common questions
When are boats to Ly Son most likely to be cancelled?
In the wet and typhoon season. Da Nang lists that as September to December, and the central coast rain peaks in October and November. Boats can also stop on a single windy day outside those months, so even a dry-season trip needs a spare day at each end.
How will I know if the boat is running?
Ask your seller or lodging the day before, and again on the morning of the sailing. Sailings are decided by the port and the operator, not by you, and the decision can change at short notice. Keep a phone number for the pier or lodging and check your messages before you leave Da Nang.
What if I am stuck on the island?
Tell your lodging at once and ask to extend your stay. Contact your airline about the flight home, and check what your travel insurance covers for delay and missed connections. Keep receipts. If your flight home is the next day, you are in a hard position, which is why a buffer matters.
Is there a safe month to go?
No month is free of sea risk. The dry season, which Da Nang lists as January to August, gives better odds than the wet season, but a rough day can still happen. Choose a dry-season window, keep the dates flexible and never put the island on the last day before a flight.
Sources
- On the North Central and South Central coast the rainy season starts August to September and peaks October to November. Wikipedia
- Da Nang's wet and typhoon season runs from September to December and the dry season from January to August. Wikipedia
- October is Da Nang's wettest month at about 628 mm of rain. Wikipedia
- Vietnam is affected by 6 to 8 typhoons or tropical cyclones per year. Wikipedia
Keep planning
Share your dates and your flight home, and we will check whether your Ly Son window avoids the wet months and where to place the spare day.