May - June:
Rocket Festivals
July 27th:
Khao Phansa Day - The Candle Festival
August 12th:
Queen Sirikit's Birthday - Mothers' Day

Although not a national holiday, Loy Kratong Day is one of the most popular of Thailand's festivals. It occurs on the full moon day of the twelfth lunar month. The festival, coming at the end of the rainy seasons when water levels are high thoughout Thailand, is held to pay respect to the goddess of rivers and waterways, "Mae Nam". The name Loy Kratong, comes from the word "Loy" which means "to float" and "Kratong" which is a lotus shaped vessel traditionally made from Banana leaves. The Kratong, usually contains a candle, three incense sticks, some flowers and coins. One lights the candle and makes a wish as the Kratong is launched onto the water of either a river or pond. It is beleived that the Kratongs carry away sins and bad luck.
The festival starts in the evening, when the full moon lights the sky. People carry their Kratongs to nearby rivers and ponds, though with Nong Khai's location, many obviously choose to release their Kratong into the mighty Mekong River. As more and more people release their Kratongs, the river becomes filled with beautiful flickering lights, drifting gently past the town.
As always in Thailand, the festival is also celebrated with the accompanyment of traditional music and dance.