Mid-Autumn Festival (Tet Trung Thu)

What Mid-Autumn Festival is

Mid-Autumn Festival — called Tet Trung Thu in Vietnamese — is the most child-focused holiday in the Vietnamese calendar. While the date has roots in the harvest traditions shared across East and Southeast Asia, Vietnam has shaped it into something distinct: a night for children, centred on lanterns, lion dancing, and mooncakes shared with family.

Adults celebrate too, but the emphasis is squarely on children. Parents buy lanterns, paper toys, and masks. Schools hold performances. Neighbourhoods organise processions. If you are travelling with children, this is one of the better times to be in Vietnam. If you are travelling alone, it is still worth seeing — the street atmosphere in cities and old towns is genuinely lively.

For context on how this festival fits into the broader Vietnamese calendar, see the guide to festivals and Tet.

When it falls

Tet Trung Thu falls on the 15th day of the eighth lunar month — the night of the full moon. In the Gregorian calendar this lands in late September or early October, depending on the year. It is not a public holiday in the sense that offices close, but schools typically hold events in the days before, and the actual evening draws families outdoors nationwide.

The build-up starts roughly two weeks ahead. Markets fill with mooncake boxes, lantern stalls appear on pavements, and supermarkets dedicate significant floor space to gift sets. If you arrive in mid-September you will already see the preparation underway.

Mooncakes — banh trung thu

Mooncakes are the defining food of the festival. The Vietnamese version — banh trung thu — comes in two main types: baked (banh nuong) and sticky or jelly-style (banh deo). Most contain a dense sweet filling: lotus seed paste, mung bean paste, or mixed nuts with candied fruit. Many include a salted egg yolk at the centre, representing the full moon.

Flavours have expanded considerably. Pandan, taro, durian, coffee, and matcha versions are now common in city bakeries. Premium brands sell gift boxes running from around 200,000 to 600,000 VND (roughly 8 to 24 USD at 2026 rates) depending on the maker and contents. Supermarket versions cost less; artisan and hotel-brand boxes cost more.

Mooncakes are given as gifts as much as they are eaten. Businesses send boxes to clients and partners. The gifting culture around mooncakes is significant enough that the weeks before the festival are a notable retail period.

For more on Vietnamese sweets and baked goods generally, the Vietnamese desserts guide covers the wider category.

Lion dancing

Lion dancing troupes — doi mua lan — are a loud and visible part of the festival. Troupes travel between homes and businesses, performing to drums and cymbals. The lion is believed to drive away bad spirits and bring luck.

In residential neighbourhoods, families pay a troupe to come to their home. The performance typically lasts five to fifteen minutes. In commercial areas, shops commission performances for similar reasons. On the festival evening itself, multiple troupes may be working the same street at once.

Most troupes performing at Tet Trung Thu are community or school-based rather than professional. Competitive lion dancing — where troupes climb poles and perform acrobatic moves — happens at formal events and competitions, less commonly at neighbourhood level.

Lanterns and paper figures

Lanterns are what children carry on the festival evening. Traditional lanterns are star-shaped, made from cellophane over wire frames with a candle inside. Battery-powered versions now dominate for safety reasons, and the shapes have expanded to include fish, butterflies, rabbits, and cartoon characters.

Paper figures and masks are also sold widely. The most traditional is the painted paper mask worn by children, along with small paper or tinfoil drums. These are inexpensive — most run 10,000 to 30,000 VND each — and sold by street vendors in the weeks leading up to the festival.

Children carry their lanterns in groups after dark, often walking with parents through the neighbourhood. In cities, public parks and old-town areas become gathering points.

Where to experience it

Hội An is probably the most atmospheric place to be for Tet Trung Thu if you are visiting as a tourist. The old town is already built around lanterns — the monthly full moon festival runs year-round — and the mid-autumn version is amplified. See the Hội An lantern festival page for detail on what that town does with lanterns across the year.

Hanoi's Old Quarter, specifically around Hang Ma street, is famous for its concentration of lantern and decoration vendors in the lead-up to the festival. The street itself becomes a market for several weeks. Ho Chi Minh City's District 5 — Cholon, the city's historic Chinese Vietnamese quarter — holds significant street celebrations.

Smaller towns and villages hold the festival just as genuinely, often with less tourist overlay.

Family traditions

The core tradition is the family gathering on the evening of the full moon. Mooncakes are eaten, tea is drunk, and children receive lanterns and gifts. In many families the evening includes looking at the moon and telling children the legend of Chu Cuoi, a woodcutter said to live on the moon, and Hang Nga, the moon goddess.

Schools typically hold Tet Trung Thu events a few days before the actual date. These involve performances, lantern-making, and children parading with their lanterns. If you are in a city neighbourhood in the week before the festival, you will likely hear school performances in the evenings.

Travel realities

Tet Trung Thu is not a major transport or accommodation crunch in the way that Tet (Lunar New Year) is. Domestic travel does not spike dramatically. Hotels in popular destinations are busier, and Hội An in particular can be crowded on the festival evening, but booking a few days ahead is usually sufficient.

Street food vendors and markets are active. Expect noise and crowds in city centres on the evening itself. Most restaurants and shops remain open. This is a low-disruption festival for travellers compared to Tet, which shuts significant parts of the economy for a week or more.

Related

• Festivals and Tet — the Vietnamese holiday calendar
• Hội An full moon lantern festival
• Vietnamese desserts and banh
• Hội An old town guide
• Vietnamese street food overview