Festivals in Laos are mostly linked to the agricultural seasons and historical Buddhist holidays, so called " BOON.
February: Boon Maka Bucha, the rice roasting ceremony organized at the beginning of February (on full moon day) to celebrate the fruitful harvesting.
April: Lao New Year Day. The biggest celebration, New Year, interestingly enough takes place in mid-April, and this is also true of Thailand, Burma, Cambodia, and among the Dai people of Yunnan, China. Houses are cleaned, offerings are made in wats and everyone gets dowsed by water.