Laos: When to Go
In northern Laos, including Luang Prabang and Vientiane, November to mid February is the 'cool' season - dry and quite warm, an ideal time to come. Mid February to May is the hot season and out in the rice fields the lushness disappears, but 85% of Laos is forested mountain, so it's still green. In March and April, smoke from agricultural fires can be a nuisance. The rainy season is May to late October - hot, humid and wet, especially in June-July; but Luang Prabang gets much less rain than Vientiane.
13-15 April: Lao New Year (Pi Mai) is celebrated with great gusto - folk songs, circle dances and and candlelit processions - particularly in Luang Prabang, where effigies of Naga (protector of the city) and Nang Sang Kham (guardian of the new year) are carried into town from the stupa on Mt Phusi.
May (date varies): Rocket Festival (Boun Bang Phai) where bamboo projectiles are fired into the sky to bring on the rains, and those whose launches fail are thrown into the mud.
August (Luang Prabang)/September (other locations): Boat races on the Mekong river, with crews of up to 50 men and women, to celebrate the end of the rainy season.
October (Vientiane): Boat races take place on the river to celebrate the Bun Nam Water Festival.
November (Vientiane): Boun Phra That Luang is celebrated, a 3-day religious festival at That Luang every year when hundreds of monks accept alms and flowers from the people.