Adhi Poson Full Moon Poya Day
Saturday, January 3, 2026
Poya Day is not a single day but a name for any holiday in Sri Lanka that is held to mark a full moon. There are around a dozen Poya Days every year, in conformity with the Buddhist lunar calendar and moon-phase marking system. As 70 percent of Sri Lankans are Buddhist, most of the population celebrates each Poya Day as of religious significance. The fact that the moon is largest and brightest when it is full is the rationale behind full moons being occasions for celebration. In Sinhalese, “poya” is derived from a word meaning “fast day,” which explains why many Buddhists go to temple and fast during Poyas. On Poya Days, Sri Lankan workers are legally guaranteed a paid off-work day, unless they are paid time and a half by their employer during Poya Day hours. Most businesses will be closed, and alcoholic beverages and meat are not allowed to be sold until the Poya is over. Each full moon, and each corresponding Poya Day, has its own name and specific events it is meant to commemorate. These will be events related to Buddha and Buddhism. Some of the key events remembered on Poya Days include: Buddha’s birthday, Buddha’s enlightenment, Buddha’s sending out of 60 disciples as missionaries, the personal visits Buddha made to Sri Lanka, the bringing of Buddhism to Sri Lanka by Mahinda, and the first Buddhist Council held after Buddha’s death. Four ideas for things to do in Sri Lanka on any of the various Poya Days are: Should you be in Sri Lanka while the moon is full, you will notice that a day of celebration ensues. Some of these Poya Days are large and bring in celebrants from other religions besides Buddhism, while others are not as noted except by the Buddhist devout. You will find there is plenty to explore as far as Buddhist history and culture and that there are often events to attend on Poya Days.
History
There are around a dozen Poya Days every year, in conformity with the Buddhist lunar calendar and moon-phase marking system. As 70 percent of Sri Lankans are Buddhist, most of the population celebrates each Poya Day as of religious significance. Each full moon, and each corresponding Poya Day, has its own name and specific events it is meant to commemorate. These will be events related to Buddha and Buddhism. Some of the key events remembered on Poya Days include: Buddha’s birthday, Buddha’s enl
How It's Celebrated
Poya Day is not a single day but a name for any holiday in Sri Lanka that is held to mark a full moon. As 70 percent of Sri Lankans are Buddhist, most of the population celebrates each Poya Day as of religious significance. The fact that the moon is largest and brightest when it is full is the ratio