Best time to do the Ha Giang Loop: weather month by month

The best time to do the Ha Giang Loop, in short

The best time to visit Ha Giang depends on what you can live with, because every season has a catch.

• Best overall: October and November. The rain has stopped, the air is clear and the days are mild. From late October, the buckwheat is in flower. Despite the good weather, October is a quiet month on the Loop. The catch: evenings on the plateau turn cold in November, and the flowers can come a few weeks early or late.
• Close second: March and April. Mild days, mostly dry roads and fresh green fields. The catch: April brings the first showers and two Vietnamese holidays.
• Good if you don’t mind cold: December to February. Mostly dry, with clear days between cold spells, and plum and peach blossoms from late January. The catch: cold nights, unheated homestays, fog on the passes, and the crowds and closures of Tet.
• Green but wet: May to September. The fields and rice terraces are at their greenest. The catch: a heavy shower most days, usually for an hour or two rather than all day, and the risk of landslides after storms or days of non-stop rain.

If you are free to choose, go in late October or November, and avoid the Vietnamese holidays. If your dates are fixed, go anyway: no month is off-limits, but the wet and cold months need more planning.

Ha Giang weather: why the plateau is colder than your forecast

Most weather apps show Ha Giang city, and that is not where you spend most of the Loop. The city lies low in the Lo River valley. From there the road climbs to Quan Ba and on to the plateau around Dong Van and Meo Vac. Dong Van town sits at about 1,000 metres, and the passes and villages around it go higher still. Every climb takes a few degrees off.

The difference is bigger than most people expect. In January, Ha Giang city averages about 15°C, the Quan Ba valley is closer to 10°C, and Dong Van can drop to freezing on cold nights. In summer, the city is hot and sticky at over 30°C, while the evenings on the plateau are cool. So check the forecast for Dong Van or Meo Vac as well, and pack a warm layer in every season.

Rain follows the monsoon. Nearly 80 percent of the year’s rain falls from May to September, mostly as heavy showers of an hour or two in the afternoon or evening, while mornings are often clear. A forecast of “rain all day” usually means one or two downpours, not a day of grey drizzle. From October to April it is mostly dry, but clouds and fog often hang on the passes, especially in winter. One valley can be in sunshine while the next pass is in thick cloud.

Ha Giang weather month by month

The temperatures below are average daytime highs and night lows for Ha Giang city. On the plateau, take several degrees off.

The best time for what you want to see

• Clear views and dry roads: late October to November. This is the best visibility of the year, and the easiest riding. Early mornings can still bring cloud on the passes.
• Buckwheat flowers: late October to November. The pink and white fields are mostly around Dong Van, Lung Cu and Yen Minh. The timing shifts by two or three weeks from year to year, so check recent photos before you fix your dates. Many of the buckwheat fields along the road are planted for photos and charge a small fee to walk in.
• Plum and peach blossoms: late January to February, around Ha Giang city and Quan Ba. The blossoms come with cold weather, and often with Tet.
• Golden rice terraces: mid-September to mid-October, mainly in Hoang Su Phi, west of the main Loop. The main Loop is limestone and corn country. It has rice fields in valleys such as Du Gia, but not the big terraces, so plan an extra one or two days if those are what you came for.
• Water-filled terraces: May, in Hoang Su Phi, when the terraces are flooded for planting. On a clear day they reflect the sky, but the rain is starting by then.
• Green landscapes and full waterfalls: June to August. The Loop is at its greenest, but you trade it for heat, daily showers and the risk of landslides.
• Festivals and markets: the weekly markets in the towns run all year. The Khau Vai love market happens once a year, on the 27th day of the third lunar month, which falls in late April or May.
• Quiet roads: avoid the Vietnamese holidays, when most domestic travel happens.
• Riding yourself: March to April and late October to November. The roads are dry and the temperatures mild. Storms and landslides from June to September, and fog and cold from December to February, make riding much harder.

Rainy season, winter and Vietnamese holidays: what to expect

The Ha Giang Loop in the rainy season

The rainy season sounds worse than it is. In Ha Giang it runs from May to September, and on most days it means one heavy shower of an hour or two, usually in the afternoon or evening, not rain from morning to night. Mornings are often clear, so an early start gives you the best hours on the road. In return, the landscape is at its greenest, the waterfalls are full and the rice terraces are growing.

The downsides are real but manageable. Roads get muddy and slippery, viewpoints can sit in cloud, and a downpour on a motorbike means a soaking. A car keeps you dry during those showers, which is a good reason to choose one, but not the only one. With a poncho and a flexible plan, an Easy Rider tour works well in this season too. Riding yourself on wet mountain roads is only for experienced riders.

Month by month, the rainy season in Ha Giang is wettest in July and August, while May and September are easier.

Landslides: when they happen and what to do

Landslides are the one rainy-season risk worth planning for. A normal afternoon shower rarely causes them. They come after rain that lasts many hours or days, and most of all when a storm or the remains of a typhoon passes over northern Vietnam. That happens mostly from June to September. In September 2024, Typhoon Yagi left landslides and floods across the northern mountains, and in early October 2024 Ma Pi Leng Pass was closed for several hours after a night of heavy rain.

The danger is highest during and just after long, heavy rain, because soaked slopes can keep moving after the rain has stopped.

• Watch the forecast for storms, not just for rain. If a storm is heading for northern Vietnam, move your dates or wait it out in Hanoi or Ha Giang city.
• After a night of heavy rain, start later and ask at your accommodation whether the road ahead is open.
• If a road is blocked, expect to wait from a few hours to a day or two. On mountain roads there is often no quick way around.
• Plan one spare day from June to September, and do not book a tight bus or flight right after the Loop.
• Never pass a closure barrier, on foot or by bike.

On a tour, the driver or guide decides when it is safe to go on and which way to take.

Is winter too cold for the Ha Giang Loop?

It is not too cold to go, but colder than most people expect from Vietnam. From December to February, Dong Van can drop to freezing on cold nights, there is frost on the high passes, and in some winters even light snow on the highest villages. The days are often clear and dry, which makes winter a good time for views, as long as you are ready for the cold.

The cold is worst at night. Almost no homestays have heating, and the traditional houses get very cold after dark. On a motorbike, the wind makes it worse, even as a passenger.

• Travel by car if you feel the cold easily. A private car tour keeps you warm between the viewpoints.
• Sleep somewhere with heating, such as Aya Lodge in Sung Trai, a Hmong village on the plateau, or a hotel with heating in the towns.
• Pack properly warm clothes: a down or fleece jacket, a thermal layer, gloves and a hat.

Fog: when it is worst and how to ride in it

Fog is most common from December to March, and most of all in January and February, when cold, damp air can sit on the plateau for days. In the rainy season, low cloud also covers the high passes after heavy rain. Morning fog often lifts by late morning, but cloud on a pass can stay all day. On a foggy day, a famous viewpoint like Ma Pi Leng can show nothing but white, so keep some flexibility if the view matters to you.

If you ride in fog:

• Slow right down, so you can stop within the distance you can see.
• Use your low beam, not the high beam, which reflects off the fog and blinds you.
• Sound the horn before blind bends, as local drivers do.
• Keep to your side of the road, and leave extra space to the vehicle ahead.
• Never stop on the road for photos. Pull right off, where others can see you.
• If it is thick, wait it out with a coffee in the next village. An hour often makes a big difference.

Vietnamese holidays: when the Loop gets crowded

Ha Giang is one of the favourite trips for Vietnamese travellers, and most of them travel during public holidays and long weekends. Outside those dates the Loop is rarely crowded, even in the best months. During them, homestays fill up, prices go up, viewpoints get busy and buses from Hanoi sell out.

The holidays, from busiest to least busy:

• Tet (Vietnamese New Year): the busiest and the most disruptive. It falls on 6 February in 2027, with about a week of holidays around it. Ha Giang fills with Vietnamese travellers coming for the blossoms, while many family kitchens and small shops close for the first days of the new year.
• Reunification Day and Labour Day (30 April and 1 May): the second-biggest rush, often stretched into a break of four or five days. In 2027 the holiday runs from 30 April to 3 May.
• National Day (2 September): two days off, often joined to a weekend.
• Hung Kings Day: the 10th day of the third lunar month, Friday 16 April in 2027, which makes a long weekend.
• New Year’s Day (1 January): one day off, busy only when it makes a long weekend.

If your trip falls on one of these dates:

• Shift your dates by a few days if you can. The first and last days of a holiday are the hardest for buses to and from Hanoi.
• If you cannot, book early: transport and every night’s accommodation, weeks ahead for Tet and the end of April.
• Start early, before the domestic tour groups reach the viewpoints.
• Take quieter roads. Most Vietnamese travellers follow the main route between the famous stops, while the side roads stay calm. A local driver or guide knows them.
• At Tet, carry snacks and cash, as many places to eat are closed.