A wet day in Vietnam, and what to do with it
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Rain here is an event with an end. In the north and the south it arrives as a heavy afternoon burst, half an hour to ninety minutes on most days of the wet season. Everyone pulls under an awning, and then the street starts again. That is why the local response to a downpour is to order another coffee rather than to change the day.
Knowing which hour you have lost, and which things are actually shut, is the whole difference between a wasted day and an ordinary one.
Which rain are you getting?
The rain differs by region, and the answer is not the same across the country. The month-by-month guide has the full calendar; this is the short version, because the response differs.
| Where | Wet months | What it looks like | What to do |
|---|---|---|---|
| North — Hanoi, Sapa | May to October | Heavy bursts, then clear | Wait it out, keep mornings free |
| South — Saigon, Mekong | May to October | An afternoon hour, hard | Plan outdoors before 14:00 |
| Centre — Hue, Hoi An, Da Nang | September to December | Days at a time, with storms | Watch the forecast, keep slack |
The centre is the one that changes a plan. Its rain comes with the tail of the typhoon season, which the storm guide covers properly. October and November take 2 or 3 days out of one stretch of coast at a time, several times in a season.
What actually closes?
Anything on water, and anything on a slope. Ha Long cruises stop when the port authority closes the bay, and no operator overrides that. Small boats — the rowed sampans at Ninh Binh, the delta canals, the coves at Quy Nhon — stop when the water gets rough or the visibility goes.
Cable cars pause in wind rather than in rain. Trekking routes around Sapa and Ha Giang turn to clay, and a guide will tell you within the first 20 minutes whether the day is worth continuing. Beaches empty out, and the flags matter more than usual, which the beach safety page sets out.
Almost nothing else shuts. Museums, temples, markets, workshops, kitchens, tailors and every coffee shop in the country carry on exactly as before.
Where does the afternoon go instead?
Indoors, and there is more of it than the guidebooks suggest. The museums guide covers the four worth a wet afternoon rather than the twenty that exist. A cooking class is 3 hours of shelter that produces lunch, and the market half of it happens under cover anyway.
A water puppet show in Hanoi runs about 50 minutes and is the one evening that competes with good weather rather than with rain. Tailors in Hoi An take a fitting whatever the sky is doing, and a rainy first afternoon is the right time to start one rather than the last.
The version locals choose is simpler: sit down. A coffee on a low stool while the street steams is not a consolation prize, and a hot pot table is genuinely better in bad weather than in good.
What do you wear?
A poncho, bought before you need one. Any mini-mart or market stall sells them for roughly 15,000 to 30,000 dong — a dollar or so at about 26,000 dong to the dollar — and they appear on every pavement within seconds of the first drops, at which point the price is at its least generous.
Sandals beat trainers, because wet trainers stay wet for two days in this humidity and sandals dry on your feet. Keep the phone in a bag rather than a pocket. The packing guide makes the same argument about a dry bag, which earns its space on any trip involving a boat.
Which places take it worst?
Hoi An, because the old town is the attraction and there is no indoor version of walking it. In a bad autumn the Thu Bon comes through the ground floors and boats replace bicycles in the lanes for a few days.
The mountain routes are the other soft spot. A wet Ha Giang loop is a genuinely different proposition from a dry one, and a rider who is not confident should let the day pass rather than ride it.
Hanoi and Saigon absorb rain best. Both have enough indoors for a full day, and both flood at a few known junctions without the city stopping.
Does the rain improve anything?
The limestone, and not by a small margin. Mist between the karst at Ninh Binh and through the northern valleys is what the best photographs of this country are made of, and it only happens in weather most people would rather avoid.
Crowds thin, prices soften, and the light after a burst — wet road, low sun, everything reflecting — is the hour photographers wait for. The trip does not need saving from an afternoon of rain. It needs an hour of patience and somewhere to sit.
FAQ
How long does rain last in Vietnam?
In the north and south, usually an hour or two in the afternoon rather than all day, which is why locals wait it out under an awning instead of rearranging anything. The central coast in autumn is the exception, where rain can settle in for days at a time.
What closes in Vietnam when it rains?
Anything on water or on a slope. Ha Long cruises are cancelled when the port authority closes the bay, small boats stop, cable cars pause in wind, and trekking routes turn to mud. Museums, markets, workshops and every kitchen in the country carry on.
What does a poncho cost?
About 15,000 to 30,000 dong from any mini-mart or market stall, and every one of them is sold within thirty seconds of the first drops. Buy one on arrival rather than at the moment you need it, because that is when the price is least favourable.
Is a Vietnamese rain forecast worth changing plans for?
Rarely in the north or south, where the forecast says rain most days of the wet season and means an hour of it. On the central coast in October and November it is worth watching, because that rain arrives with a storm behind it.
Which city is best on a wet day?
Hanoi and Ho Chi Minh City, because both have enough indoors to fill a day and pavements busy enough to stay interesting. Hoi An is the hardest, since the old town is the attraction and it floods in a bad autumn.
Does anything get better in the rain?
The karst does, at Ninh Binh and in the northern mountains, where mist between the limestone is what people photograph. So does every soup, every coffee shop and every hot pot table, which is why the Vietnamese eat the way they do in bad weather.
Should you still rent a scooter?
Not in heavy rain, and not at all if you are new to riding. Vietnamese roads flood fast, painted surfaces turn slick, and visibility drops behind a poncho hood. Wait the hour out with everyone else, or take a car.