Every wet morning somebody comes to the counter at 84 Phan Chau Trinh, looks at the sky, and asks whether they should still take the bike. The honest answer is almost always yes, with conditions. A March shower that passes in twenty minutes and a November day of solid rain are completely different things, and the advice that fits one is wrong for the other.

This guide is what we tell those riders. It covers what rain in Hoi An actually looks like month by month, what Vietnamese law says about riding in the rain, how to handle a scooter on wet roads, where the slippery spots are, and the few situations where the right answer is to park and order another coffee.

Is riding in the rain in Hoi An a good idea? The short answer

Yes, in most rain, if you slow down. Hoi An is flat, the town is small, traffic moves at 30 to 40 km/h, and most trips are ten minutes long. A light or moderate shower on those roads is uncomfortable rather than dangerous, and a good poncho takes care of the discomfort.

What changes the answer is not the rain itself but what comes with it: lightning, visibility you cannot see through, standing water of unknown depth, darkness, and the long-distance roads over the passes. Use this table as the first check before you leave.

Most visitors only ever meet the first three rows. The last three are a few days a year, concentrated in October and November.

What rain in Hoi An looks like, month by month

Central Vietnam does not follow the rainy season most travellers expect. Hanoi and Saigon are wet in summer; Hoi An is wet in autumn, when the northeast monsoon pushes cloud against the Truong Son mountains and typhoons track in from the East Sea. The figures below are the monthly averages we use in our month-by-month Hoi An weather guide, with what they mean on a bike.

The number that matters is the gap: October brings roughly seventeen times the rain of March. That is why the original advice many visitors read, that rain in Hoi An is “usually gentle”, is only half true. It is gentle in the dry season and the shoulder months. In October and November, riding in the rain is a different activity, and flooding in the low streets becomes the real issue. Our Hoi An flood season guide covers which streets go under and what still works when they do.

In March you ride between showers. In October you choose between rain and more rain, and you plan the day around shelter, not around the sights.

What the law says about riding in the rain

Two rules catch visitors out on wet days, and both come from Decree 168/2024, the traffic fines regulation in force since 1 January 2025.

No umbrellas on a moving bike. You will see it done, especially by a passenger holding one over both riders. It is illegal for both of you:

The law is not only about the fine. An open umbrella on a scooter catches wind like a sail, blocks half of your view and takes a hand away from the brakes. It is the single worst piece of rain gear you can bring to a bike.

Headlights on in the rain. The same decree requires lights from 6 pm to 6 am and whenever rain, fog or bad weather limits visibility; riding without them in those conditions is fined 200,000–400,000₫. On most modern scooters the headlight comes on with the ignition, but check the tail light too, and do not ride with a poncho draped over it.

How to ride a scooter on wet roads

The physics is simple: a wet tyre has less grip, so everything that asks the tyre for grip has to be gentler. The Highway Code’s wet-weather rule puts stopping distances at at least double those on a dry road, and on a scooter with small wheels that is a fair minimum.

• Drop 10–15 km/h below your dry speed. In town that means 25–30 km/h. You will not arrive noticeably later; the trips here are short.
• Double the gap to the bike in front. Local riders brake late and suddenly, and on a wet road you need the space to react.
• Brake early, straight and with both levers. Squeeze, do not grab. On a scooter the left lever works the rear brake; use it a little before the front so the bike settles.
• Do not brake while leaning. Slow down before the corner, turn with the bike upright as much as you can, then accelerate gently out of it.
• Smooth throttle. A sudden twist on a wet surface spins the rear wheel, especially on the more powerful automatics.
• Ride in the tyre tracks of cars on wider roads. They clear some of the water and the oil; the centre of the lane collects both.
• Use the horn more than on a dry day. Ponchos and hoods block other riders’ hearing and side vision as well as yours.

The first rain after a dry spell is the most slippery. Weeks of oil, rubber dust and sand sit on the surface, and the first half-hour of rain lifts them into a greasy film before heavier rain washes them away. If it has been dry for a fortnight and the rain has just started, that is the moment to be at your slowest.

New to scooters altogether? Learn on a dry day, not a wet one. Our safety guide for riding in Hoi An (in Vietnamese) and the ride-through we give at handover are both better taken in sunshine.

The slippery spots in and around Hoi An

Most of the tarmac around town grips reasonably well when wet. The danger is in the surfaces that do not, and they are predictable once you know them.

• Painted road markings. Zebra crossings, stop lines and arrows turn to glass in the rain. Cross them upright and off the brakes.
• Metal. Manhole covers, drain grates and the steel expansion joints on bridges. Hoi An is a town of rivers and bridges, so you will cross plenty. Ride over joints in a straight line.
• Sand on the beach roads. The roads out to An Bang, Cua Dai and Tan Thanh carry blown sand, and wet sand on tarmac is one of the most common reasons a rental comes back scratched. Slow down on the last kilometre to the beach, and in the sandy car parks.
• Tiles and paving in the Old Town. Some lanes and pavements are tiled or paved rather than tarmacked, and the smooth stone is slick when wet. Walk the bike onto the pavement to park; do not ride up the kerb.
• Leaves and mud on the country lanes through Cam Thanh and Tra Que, and mud tracked onto the road wherever a lane meets a field or a building site.
• Puddles that hide potholes. A puddle on a road you do not know is a question, not a surface. Go round it, or through it very slowly and upright.

Rain gear that works on a bike

Most of the misery of riding in the rain comes from the wrong gear rather than the rain. What works here is what Vietnamese riders use, and it is cheap.

A bat-wing poncho, not a walking raincoat. The Vietnamese áo mưa cánh dơi has a long front panel that drapes over the handlebars and your knees, and many have a clear window for the headlight. A convenience-store poncho balloons, rips at the neck and funnels water into your lap. Two-person versions have a second hood for the passenger. Every rental from us comes with helmets and raincoats at no extra cost, as we explain in does scooter rental in Hoi An include a helmet and raincoat; if you rent elsewhere, any market stall sells one for about the price of a coffee.

Keep the headlight and mirrors clear. Tuck the front panel under the headlight window, not over it, and fold the sides back from the mirrors. A poncho that hides your lights is a fine and a hazard.

A helmet with a visor, or clear glasses. Rain at 30 km/h stings, and it goes straight into your eyes. A visor helps, clear glasses help; sunglasses at night do not.

Sandals, not trainers. Your feet will get wet whatever you do. Sandals dry in an hour; canvas shoes stay wet for two days.

Zip bags for phone, passport copy and cash. The storage under a scooter seat is not waterproof; rain gets in round the hinge. Double-bag anything that matters.

Electric scooters and e-bikes in the rain

A lot of riders assume electric and water do not mix, and ask whether they should swap to a petrol bike on a wet day. For normal rain, no. Electric scooters are built to be ridden in Vietnamese weather, and on a flat town like Hoi An they have real advantages when it is wet: the power delivery is smooth, there is no clutch or gear to fumble, and there is no hot exhaust to burn a leg under a flapping poncho.

The VinFast Evo200 Lite we rent is a good example. VinFast rates its battery and motor at IP67 and says it can wade water up to 0.5 m for 30 minutes. Rain is well within what it was designed for.

That rating is not an invitation to ride into floodwater. A factory test in clean water is not a Hoi An street in November, which hides open drains and dropped kerbs and carries whatever was in the gutters. Our rule is the same for every bike in the fleet, petrol or electric: if you cannot see the road surface under the water, do not ride through it.

• Range drops a little in the rain, because you ride with the lights on and a poncho adds drag. On a town day it makes no difference; on a long ride, start charged. Our guide to VinFast electric scooter range has the real numbers.
• E-bicycles have lighter brakes than scooters and narrow tyres. Ride them even slower in the wet and give yourself more room to stop.
• Pedal bicycles are fine for short, flat rides in light rain, but a steady downpour on a bicycle is simply wet. Take a Grab car for dinner on the worst nights.
• Never charge a soaked bike. If an electric bike has been through deep water, leave it switched off and call us.

The short video below is ours, from our TikTok channel, on riding in the rain in Hoi An.

When to stop riding and wait

There are only a few situations where riding in the rain stops being a comfort question and becomes a safety one. If any of these apply, the right move is to pull in, park, and wait.

• Thunder overhead. Count the seconds between flash and bang. Under ten, get under a roof, and not under a tree. Summer storms usually pass within the hour.
• You cannot see 50 metres. Other riders cannot see you either. Tropical downpours are short; a café stop costs you twenty minutes and a coffee.
• Water across the road that hides the surface. Stop and turn round. Floodwater hides potholes, open drains and missing manhole covers, and a scooter’s air intake sits low. Water above the wheel hub is our hard limit.
• Night plus heavy rain on a road you do not know. Glare, hidden puddles and unlit country lanes together make this the hardest riding you can do here. Ride home before dark or take a Grab and collect the bike in the morning.
• A storm or typhoon warning. Check the official forecast at the National Centre for Hydro-Meteorological Forecasting and do what your hotel tells you. When a storm is due, roads can be closed at short notice and the town stays in; so should you.
• The mountain passes in heavy rain. Hai Van and Son Tra are steep, winding and exposed, with fog and landslide risk in the wet season. Our Hai Van Pass weather tips explain how to judge that ride.

Rides that still work on a wet day

A wet day is a lost day only if the whole plan was a long ride. Short rides between roofs work well, and some places are better with rain on them.

For the full list of what to do when the weather turns, including the museums, the markets and where to eat, read our guide to a rainy day in Hoi An.

And one thing that surprises people: the town is often at its most beautiful in light rain. The crowds thin out, the yellow walls darken, and the lanterns reflect in the wet street. A slow ride along the edge of the Old Town at dusk in a drizzle, parked up and walked for the last stretch, is one of the better hours you can spend here.

FAQ

Rainfall figures are monthly averages from our Hoi An weather guide; individual years vary a lot. Fines are from Decree 168/2024/ND-CP, in force from 1 January 2025, checked September 2026. VinFast figures are the manufacturer’s own. Weather warnings change quickly: check the official forecast before a long ride.