The Lunar New Year celebration.
The songkrang Festival is celebrated from April 13 to 15 . This is the Lunar New Year celebration. When Buddha images are bathed, and a lot of water is generally tossed around.

The songkran celebrations are usually raucous and fun -- and Chiang Mai is famed for holding particularly enthusiastic festivities.

Loy Krathong
The Lotus-Boat Water Festival
For sheer beauty, few Thai festivals can compare with Loy Kratong, held on the full-moon night of the 11th lunar month. Legend says this originated in the ancient capital of Sukhothai, when a lady of the royal court made the first krathong , a creation of deftly-folded banana leaves in the shape of a lotus bloom, adorned with flowers, incense sticks, and lighted candles, and set it adrift on a nearby river to pay homage to the water spirits.

Now the festival is celebrated throughout Thailand, with a wide variety of krathong ranging from simple small versions to enormously ornate ones, while the evening skies are ablaze with fireworks.

Visakha Puja Day
Regarded as the most significant and auspicious day for Buddhists all over the world, Visakha Puja commemorates the Birth, the Enlightenment, and the Death of the Lord Buddha. The occasion is observed each year on the full moon day of the sixth lunar month known as Visakha month.

The Load Buddha was born in a small village in Lumpini, Nepal, on the full moon day of the sixth lunar month. Forty five years later, he attained Enlightenment on the same full moon day of the sixth lunar month in Varanasi (Benares). The Lord Buddha passed away in Kusinara, again on the full moon day of the six lunar month. The three incidents took place on the same day in an extraordinary coincidence.

On this sacred day, devout Buddhists go to temples with flowers, joss-sticks and candles to join candlelit around the temple.

Phi Ta Khon Festival
The festival is annually held at Dan Sai and Na Haew districs, Loei Province. Phi Ta Khon is celebrated largely by young men who dress as spirits to parade a sacred Buddha image and tease villagers, and monks reciting the story of the Buddha's last great incarnation before attaining Enlightenment.