Waso is the fourth Myanmar month. It is part summer and part monsoon.

The full-moon day of Waso is significant as the day the embryo-Buddha was conceived, the day Buddha preached the first sermon of Dhamma Cakka, the day He performed the miracles. It is a time of ordination and novitiation into the religious order, with these events held since the days of ancient Myanmar monarchs for the flourishing of the Sasana. There is also a practice of young men and women going on outings of gathering flowers to be offered at Buddha images. A significant practice of Waso is the offering of monk’s robes to members of the Sangha for  use during the Lent and so these robes are called Waso robes. Likewise there are also big candles called Waso candles offered at this time of the year. Among lay people it is also a time to offer elders cakes,fruits and other offertories.

In some years, there are two full moons in the month of Waso. The main festivals are celebrated around the second Waso fullmoon which falls in July. This festival commemorates the time when the Buddha gave His first sermon to five monks. Pilgrims throughout the country gather wild flowers to offer at pagodas, and offer new robes to monks. The Buddhist Lend period is from the full moon  of Waso until the fullmoon of Thadingyut.