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Loy Krathong Festival – All You Need to Know


Loy Krathong [ลอยกระทง] is one of the biggest festivities in Thailand. It is when people take to the waters to release small, illuminated boat offerings made of banana stalks and leaves. Over the years the sight of lights floating across the country’s rivers and canals has become a point of intrigue for visitors from all over.


But, where did this festival come from? What exactly is a krathong? And, why is water so central to this celebration?


We are here to answer all that!


What is Loy Krathong?

Loy Krathong is a festival celebrated by the Thai people on the full moon night of the twelfth month of the Thai lunar calendar. In the modern calendrical system, this event usually occurs in the month of November, though the date varies from year to year. Regardless of the exact timing, Loy Krathong is always considered as an occasion for joy, gratitude, and new beginnings.


The term “Loy Krathong” is derived from word “loy”  – meaning “to float”- and the word “krathong” – which refers to type of small, floating religious offering. True to its name, the highlight of the festival is the floating of krathongs across small and large bodies of water all over the country. The objective for this act varies depending on customs and beliefs, but can be generally identified as follow:


  1. The worship Phra Mae Khongkha

Phra Mae Khongkha is the Thai name for the Hindu goddess Ganga who is the personification of the river Ganges. When the Thai ancestors adopted Hinduism, they blend its teachings with local animistic beliefs. Thus, Ganga became worshipped as Phra Mae Khongkha – the goddess who personifies all bodies of water.


As an agricultural society, water has played a crucial role in the Thai way of living since ancient times. The element provides sustenance, while rivers, canals, and oceans acted as the main mode of transportation throughout the major part of Thai history. Thus, every year during the Loy Krathong festival, Thais float small boats of offerings as tokens of gratitude toward the goddess of water. They also use this opportunity to ask forgiveness for any wrongdoings they have committed upon the water, such as littering or wasteful usage.


  1. The worship of Lord Buddha

When Prince Siddhartha decided to leave his worldly life behind, he cut off his topknot and adopted an ascetic lifestyle. The topknot was enshrined in a pagoda in the heavens and the prince went on to achieve enlightenment, becoming known as the Lord Buddha. Conveniently, legend also holds that all rivers flow down from the heavens. Thus, Thais float krathongs in rivers and other bodies of water, believing that the offerings will find their way to the heavenly pagoda. Another version of the legend tells that the Lord Buddha once left behind a footprint at the bank of the Nammatha river in India. Thus, Thais float krathongs in belief that the offerings will find their way to the sacred footprint.




  1. The worship of Venerable Upagupta

Upagupta was a Budhist monk who, according to legend, was a spiritual teacher of the Indian Emperor Ashoka. The venerable master was said to have quelled the demon Mara during a religious celebration held by the emperor. In Myanmar, it is believed that Upagupta is still alive, residing in a recluse at the center of the ocean. This legend was later adopted by the certain parts of Thailand. Krathongs are float, according to this line of faith, as offerings for Upagupta.


  1. The worship of Lord Vishnu

Another belief with Hindu origins, the god Vishnu is said to be slumbering on a giant serpent in the Ocean. Thus, krathongs are float as offerings to Lord Vishnus, as all water ways lead to the sea.


  1. The worship of ancestors

Some people also float offerings to pay homage to their ancestors. This line of belief shares common traits with other celebrations such as the East Asian Lantern Festival.


Other Loy Krathong activities include the floating of sky lanterns, Buddhist religious ceremonies, music, street food, and local fairs. Major rivers such as the Chao Phraya and Mekong are hotspots for celebration.



It is a common belief that Loy Krathong originated from the period of the Sukhothai Kingdom (1238 -1438). The classical literature Tamrap Thao Si Chulalak [ตํารับท้าวศรีจุฬาลักษณ์] tells of lady named Nang Noppamas who was a high-ranking concubine of the King of Sukhothai. During an annual celebration where royals offered votive floats in worship of the Buddha, Nang Noppamas designed an elegant float shaped like a lotus and decorated with miniature bird figures. This float eventually became the basis for the krathong. The story also inspired another common tradition of Loy Krathong: beauty pageants where contestants dress up as Nang Noppamas.


Nang Noppamas reenactment in Sukhothai Province

[กาญจนา อายุวัฒน์ธนชัย – Post Today]


Academics, on the other hand, believe that the origins of Loy Krathong date back further than the Sukhothai period. In fact, according to the Historian Prince, Damrong Rajanubhab (1862 – 1943), the tale of Tamrap Thao Si Chulalak was probably written later during the reign of King Nangklao (1824 – 1851). Thus, the association of krathongs with Nang Noppamas could have been created by later generations.


Festivals and traditions involving the floating of offerings are a shared culture in Southeast Asia, and can even be found in East Asia. Since ancient times, people of the Southeast believe in spirits that inhabit water and land. To give thanks to these spirits, people would prepare small offerings in containers – usually made of banana leaves or stems – which are placed on the ground and in water ways. It is unclear when or where the tradition of floating offerings began, but the earliest depiction of the custom can be found at Bayon in Cambodia, dating to around 1208. When Buddhism and Hinduism entered the region, the offerings became objects of worship for the Buddha and Hindu deities instead of local spirits. Other historians also believe that elements of Loy Krathong could have been influenced by the Chinese custom of floating paper lanterns.


The Krathong

Krathongs [กระทง] are usually made out of banana stems and leaves. The stem is cut into a circular shape to form the base of the krathong. Banana leaves are then cut and folded into many rectangular pieces which adorns the outer edges. Lastly, flowers are placed as decorative offerings at the top alongside candles and incense sticks. It is also common for people to place pieces of their hair and nails in the offerings. This is done as a symbolic gesture to float away any bad lucks that one may have. Another common practice is for people to place coins in the krathongs. This is done as an act of charity, for the money will be fished out of the offerings by children the day after the celebration.




The creation of krathongs reflect the longstanding attitudes of respecting and understanding natural materials that are present within the culture of Thai craftsmanship. The banana boat offerings oftentimes demonstrate astonishing skills of crafts and aesthetics. Right before the floating, people will light the candles and incense, then bring the krathongs up to their foreheads. As they do this, they will express words of gratitude and make good wishes for their future.


[Mollacake – Sista Cafe]


Regional Variations

Many variations of the festival exist across Thailand. Here are some examples:


  1. Yee Peng Festival in Chiang Mai Province


[Tourism Authority of Thailand]


Yee Peng [ยี่เป็ง] is a festival celebrated in Northern Thailand. The highlight of the festivity is the launching sky lanterns, which the people perform as offerings to Lord Buddha’s relics in the Heavens. Locals also decorate temples and houses with colorful lanterns.


  1. Lai Reua Fai Festival in Nakhon Phanom Province




Lai Reua Fai [ไหลเรือไฟ] means “to float fire boats” and is celebrated in Northeastern Thailand. True to its name, the highlight of the festival is the showcase of large boats, which are decorated in lightings of various shapes. The celebration in Nakhon Phanom Province is said to be the most spectacular in the country.


  1. Loy Krathong Sai in Tak Province


[Post Today]


Loy Krathong Sai [ลอยกระทงสาย] is an ancient tradition of Tak Province. Krothong sai are hundreds of krathongs made from coconut shells that are tied together to form a long chain. They are lit and released into the water to form a line of floating light.


Future of the Festival

As concerns about environmental conservation rise, many became aware problems posed by certain aspects of the festival. Namely, the over-floating of krathongs in certain area can, ironically, lead to polluting issues. Though the organic materials used to make krathongs can decompose naturally, oversaturation can cause problems such as stench and rot. Cleaning up after the festival is a laborious task undertaken by the government and communities living around water ways each year.


To solve this problem, there are efforts to promote modest floating of krathongs. Many also resorted to using creative new materials to make their offering boats. These new lines of krathongs are made from items such as bread and fruits, which decompose faster and can be easily digested by aquatic creatures. Others use the festival as an opportunity to raise awareness on water management and conservation.


Watermelon krathong []


With new solutions being created each year, Loy Krathong is able to adapt to modern concerns. Today, Loy Krathong is still celebrated as one of Thailand’s biggest festivities. Not only does it come packed with colorful sights and activities, but it also reflects the value of respect present within the Thai people.






Author: Tayud Mongkolrat

Cover Graphic: Fahon Mongkolrat