annual Phra Pathommachedi Festival (Thai: เทศกาลนมัสการองค์พระปฐมเจดีย์ ประจำปี) takes place from the evening of the full moon of the 12th month to the 4th day of the waning moon in the 12th month in the traditional Thai lunar calendar.[8] In the Gregorian calendar this usually falls in November. Since 1974 Wat Phra Pathommachedi organized the festival in order to raise money to maintain the stupa and the temple. Normally the festival takes place for 5 days 5 nights or 9 days 9 nights, as decided by the festival committee.
Phra Ruang Birthday Ceremony[edit]
On 2 November of every year is considered birthday of Phra Ruang Rojanarit Buddha image, Wat Phra Pathommachedi organize ceremony to celebrate the Buddha image. The ceremony attracts thousands of worshippers. The highlight of the ceremony is a lucky draw to find a person to be a representative of all worshippers to lit light in front of the Buddha image. Most of worshippers bring red painted boiled eggs and yellow flower garlands to worship the Buddha image.