Temple stonework in Cambodia
Nationwide - fifteen days

Pchum Ben (Ancestors Day)

The most solemn and most Cambodian thing in the calendar.

In short

Pchum Ben is a fifteen-day period of offerings to ancestors, falling in September or October depending on the lunar calendar, with the final three days as public holidays. It is quieter and more inward than the other festivals, and pagodas fill before dawn.

Checked

September 2026

Part of Festival Heritage
At a glance

The short version

When
September or October, set by the lunar calendar - the exact dates move each year
How long
Fifteen days, of which the last three are public holidays
Where
Pagodas everywhere; people return to their family province
What happens
Food offerings made to monks at pagodas, often before first light
As a visitor
Observe rather than participate unless invited. Dress modestly at pagodas
Practical
Expect closures on the final days and heavy road travel around them

Pchum Ben is the festival that tells you the most about Cambodia and the one visitors are least likely to have heard of.

For fifteen days, families take offerings of food to pagodas on behalf of their ancestors, often arriving before first light. The belief is that the gates between worlds open and that spirits who go unfed go hungry. It is an act of merit rather than a party, and the tone is completely different from the Water Festival.

If you are here for it

Go to a pagoda early, dress modestly, stay at the edge and watch. Do not photograph people at prayer without asking. The last three days are public holidays, so expect closures and busy roads.

Questions travellers ask

When is Pchum Ben?
September or October - it is set by the lunar calendar and moves each year. The last three days are the public holidays.
What actually happens?
Families take food offerings to pagodas, frequently before dawn, on behalf of ancestors. It is an act of merit, not a celebration.
Can visitors attend?
You can visit a pagoda respectfully and quietly. Dress modestly, remove shoes, and follow what everyone else is doing.
Does it disrupt travel?
The final three days, yes - closures and very busy roads as people travel to their home provinces.
Related

Goes well with this

All activities
Phnom Penh - three days

Water Festival (Bon Om Touk)

Bon Om Touk marks the reversal of the Tonle Sap river with three days of boat racing on the Phnom Penh riverfront. It falls on the full moon of the Khmer month of Kadeuk, usually in November. In 2026 it runs 23 to 25 November. The city fills, and hotels book out months ahead.

Where
Phnom Penh riverfront, with smaller races elsewhere
When
The full moon of Kadeuk - usually November, occasionally late October
Read more
Nationwide - three days

Khmer New Year (Choul Chnam Thmey)

Khmer New Year falls in mid-April, usually 14 to 16 April, and effectively closes the country for three days as people return to their home provinces. It is joyful, it is very hot, and the cities empty while the countryside fills.

When
Mid-April, normally 14 to 16 April
How long
Three days officially, longer in practice
Read more
Siem Reap - half day

Angkor Wat at sunrise

Sunrise at Angkor Wat means leaving your hotel around 4.30am to be at the west causeway before the sky changes. It is busy, and it is still worth it. The trick is what you do at 7am, when the crowd goes to breakfast and the temples empty out.

Where
Angkor Archaeological Park, Siem Reap
Start
Around 4.30am from your hotel
Read more
Phnom Penh - half day

Tuol Sleng and Choeung Ek

The Tuol Sleng Genocide Museum and the Choeung Ek memorial are where Cambodia confronts the Khmer Rouge period directly. They are difficult, they are essential, and how you schedule the rest of that day matters more than people expect.

Where
Tuol Sleng in central Phnom Penh; Choeung Ek about 15km south
How long
A half day for both, with the drive between
Read more