October 27th is end of Buddhist Lent, and various festivals take place in the days and weeks before:
Vegetarian festival in Phuket, Wax Castle Procession in Sakon Nakon, Rap Bua in Samut Prakarn, Naga Fireball festival in Nong Khai, Tak Bat Tevo in Uthai Thani.
For details about last year's festivals see here:
http://www.tatnews.org/thailand-cele...14-nationwide/
