1. Tagu (April) - Thingyan Festival (Water Festival)
2. Kason (May) - Bo Tree watering Festival
3.Nayon (June) - Tipitaka Festival (Buddhist Monk try Buddha's teaching)
4. Waso (July) - Robe Offering Festival, Dhammasekya Day (Ka-Htain Ceremony)
5. Wagaung (August) - Taungbyoun Nat Festival (Most famous in Mandalay Tyaung-Pyone)
6.Tawthalin (September) - Regatta Festival (Boat rolling competitions)
7. Thadingyut (October) - Lighting Festival
8.Tazaungmon (November) - Kyi Ma No Festival (especially teenager's)
9. Nadaw (December) - Karen New Year
10. Pyatho (January) - Kachin Manaw Festival
11. Tabodwe (February) - Harvest Festival
12. Tabaung (March) - Shwedagon Pagoda Festival Nationwide pagoda festival
For more details contact me.